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         $wgProfiling = false;
  27
  28 require_once( "$IP/includes/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 $prclass();
  40         }
  41 } else {
  42         require_once( "$IP/includes/ProfilerStub.php" );
  43 }
  44
  45 $fname = 'Setup.php';
  46 wfProfileIn( $fname );
  47
  48 wfProfileIn( $fname.'-exception' );
  49 require_once( "$IP/includes/Exception.php" );
  50 wfInstallExceptionHandler();
  51 wfProfileOut( $fname.'-exception' );
  52
  53 wfProfileIn( $fname.'-includes' );
  54
  55 require_once( "$IP/includes/GlobalFunctions.php" );
  56 require_once( "$IP/includes/Hooks.php" );
  57 require_once( "$IP/includes/Namespace.php" );
  58 require_once( "$IP/includes/User.php" );
  59 require_once( "$IP/includes/OutputPage.php" );
  60 require_once( "$IP/includes/MagicWord.php" );
  61 require_once( "$IP/includes/MessageCache.php" );
  62 require_once( "$IP/includes/Parser.php" );
  63 require_once( "$IP/includes/LoadBalancer.php" );
  64 require_once( "$IP/includes/ProxyTools.php" );
  65 require_once( "$IP/includes/ObjectCache.php" );
  66 require_once( "$IP/includes/ImageFunctions.php" );
  67
  68 if ( $wgUseDynamicDates ) {
  69         require_once( "$IP/includes/DateFormatter.php" );
  70 }
  71
  72 wfProfileOut( $fname.'-includes' );
  73 wfProfileIn( $fname.'-misc1' );
  74
  75 $wgIP = false; # Load on demand
  76 $wgRequest = new WebRequest();
  77 if ( function_exists( 'posix_uname' ) ) {
  78         $wguname = posix_uname();
  79         $wgNodeName = $wguname['nodename'];
  80 } else {
  81         $wgNodeName = '';
  82 }
  83
  84 # Useful debug output
  85 if ( $wgCommandLineMode ) {
  86         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  87 } elseif ( function_exists( 'getallheaders' ) ) {
  88         wfDebug( "\n\nStart request\n" );
  89         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  90         $headers = getallheaders();
  91         foreach ($headers as $name => $value) {
  92                 wfDebug( "$name: $value\n" );
  93         }
  94         wfDebug( "\n" );
  95 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
  96         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  97 }
  98
  99 if ( $wgSkipSkin ) {
 100         $wgSkipSkins[] = $wgSkipSkin;
 101 }
 102
 103 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 104
 105 wfProfileOut( $fname.'-misc1' );
 106 wfProfileIn( $fname.'-memcached' );
 107
 108 $wgMemc =& wfGetMainCache();
 109 $messageMemc =& wfGetMessageCacheStorage();
 110 $parserMemc =& wfGetParserCacheStorage();
 111
 112 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 113        "\nMessage cache: " . get_class( $messageMemc ) .
 114            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 115
 116 wfProfileOut( $fname.'-memcached' );
 117 wfProfileIn( $fname.'-SetupSession' );
 118
 119 if ( $wgDBprefix ) {
 120         $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 121 } elseif ( $wgSharedDB ) {
 122         $wgCookiePrefix = $wgSharedDB;
 123 } else {
 124         $wgCookiePrefix = $wgDBname;
 125 }
 126
 127 # If session.auto_start is there, we can't touch session name
 128 #
 129 if (!ini_get('session.auto_start')) {
 130         session_name( $wgCookiePrefix . '_session' );
 131 }
 132
 133 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgCookiePrefix.'Token'] ) ) ) {
 134         wfIncrStats( 'request_with_session' );
 135         User::SetupSession();
 136         $wgSessionStarted = true;
 137 } else {
 138         wfIncrStats( 'request_without_session' );
 139         $wgSessionStarted = false;
 140 }
 141
 142 wfProfileOut( $fname.'-SetupSession' );
 143 wfProfileIn( $fname.'-database' );
 144
 145 if ( !$wgDBservers ) {
 146         $wgDBservers = array(array(
 147                 'host' => $wgDBserver,
 148                 'user' => $wgDBuser,
 149                 'password' => $wgDBpassword,
 150                 'dbname' => $wgDBname,
 151                 'type' => $wgDBtype,
 152                 'load' => 1,
 153                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 154         ));
 155 }
 156 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 157 $wgLoadBalancer->loadMasterPos();
 158
 159 wfProfileOut( $fname.'-database' );
 160 wfProfileIn( $fname.'-language1' );
 161
 162 require_once( "$IP/languages/Language.php" );
 163
 164 function setupLangObj($langclass) {
 165         global $IP;
 166
 167         if( ! class_exists( $langclass ) ) {
 168                 # Default to English/UTF-8
 169                 $baseclass = 'LanguageUtf8';
 170                 require_once( "$IP/languages/$baseclass.php" );
 171                 $lc = strtolower(substr($langclass, 8));
 172                 $snip = "
 173                         class $langclass extends $baseclass {
 174                                 function getVariants() {
 175                                         return array(\"$lc\");
 176                                 }
 177
 178                         }";
 179                 eval($snip);
 180         }
 181
 182         $lang = new $langclass();
 183
 184         return $lang;
 185 }
 186
 187 # $wgLanguageCode may be changed later to fit with user preference.
 188 # The content language will remain fixed as per the configuration,
 189 # so let's keep it.
 190 $wgContLanguageCode = $wgLanguageCode;
 191 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 192
 193 $wgContLang = setupLangObj( $wgContLangClass );
 194 $wgContLang->initEncoding();
 195
 196 wfProfileOut( $fname.'-language1' );
 197 wfProfileIn( $fname.'-User' );
 198
 199 # Skin setup functions
 200 # Entries can be added to this variable during the inclusion
 201 # of the extension file. Skins can then perform any necessary initialisation.
 202 #
 203 foreach ( $wgSkinExtensionFunctions as $func ) {
 204         call_user_func( $func );
 205 }
 206
 207 if( !is_object( $wgAuth ) ) {
 208         require_once( 'AuthPlugin.php' );
 209         $wgAuth = new AuthPlugin();
 210 }
 211
 212 if( $wgCommandLineMode ) {
 213         # Used for some maintenance scripts; user session cookies can screw things up
 214         # when the database is in an in-between state.
 215         $wgUser = new User();
 216         # Prevent loading User settings from the DB.
 217         $wgUser->setLoaded( true );
 218 } else {
 219         $wgUser = null;
 220         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 221         if ($wgUser === null) {
 222                 $wgUser = User::loadFromSession();
 223         }
 224 }
 225
 226 wfProfileOut( $fname.'-User' );
 227 wfProfileIn( $fname.'-language2' );
 228
 229 // wgLanguageCode now specifically means the UI language
 230 $wgLanguageCode = $wgRequest->getText('uselang', '');
 231 if ($wgLanguageCode == '')
 232         $wgLanguageCode = $wgUser->getOption('language');
 233 # Validate $wgLanguageCode, which will soon be sent to an eval()
 234 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 235         $wgLanguageCode = $wgContLanguageCode;
 236 }
 237
 238 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 239
 240 if( $wgLangClass == $wgContLangClass ) {
 241         $wgLang = &$wgContLang;
 242 } else {
 243         wfSuppressWarnings();
 244         // Preload base classes to work around APC/PHP5 bug
 245         include_once("$IP/languages/$wgLangClass.deps.php");
 246         include_once("$IP/languages/$wgLangClass.php");
 247         wfRestoreWarnings();
 248
 249         $wgLang = setupLangObj( $wgLangClass );
 250 }
 251
 252 wfProfileOut( $fname.'-language2' );
 253 wfProfileIn( $fname.'-MessageCache' );
 254
 255 $wgMessageCache = new MessageCache( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 256
 257 wfProfileOut( $fname.'-MessageCache' );
 258
 259 #
 260 # I guess the warning about UI switching might still apply...
 261 #
 262 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 263 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 264 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 265 #
 266 # To disable it, the easiest thing could be to uncomment the
 267 # following; they should effectively disable the UI switch functionality
 268 #
 269 # $wgLangClass = $wgContLangClass;
 270 # $wgLanguageCode = $wgContLanguageCode;
 271 # $wgLang = $wgContLang;
 272 #
 273 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 274 #       places, including namespaces, dates in signatures, magic words,
 275 #       and links
 276 #
 277 # TODO: Need to look at the issue of input/output encoding
 278 #
 279
 280
 281 wfProfileIn( $fname.'-OutputPage' );
 282
 283 $wgOut = new OutputPage();
 284
 285 wfProfileOut( $fname.'-OutputPage' );
 286 wfProfileIn( $fname.'-misc2' );
 287
 288 $wgDeferredUpdateList = array();
 289 $wgPostCommitUpdateList = array();
 290
 291 $wgMagicWords = array();
 292
 293 if ( $wgUseXMLparser ) {
 294         require_once( 'ParserXML.php' );
 295         $wgParser = new ParserXML();
 296 } else {
 297         $wgParser = new Parser();
 298 }
 299 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 300 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 301 wfSeedRandom();
 302
 303 # Placeholders in case of DB error
 304 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 305 $wgArticle = new Article($wgTitle);
 306
 307 wfProfileOut( $fname.'-misc2' );
 308 wfProfileIn( $fname.'-extensions' );
 309
 310 # Extension setup functions for extensions other than skins
 311 # Entries should be added to this variable during the inclusion
 312 # of the extension file. This allows the extension to perform
 313 # any necessary initialisation in the fully initialised environment
 314 foreach ( $wgExtensionFunctions as $func ) {
 315         call_user_func( $func );
 316 }
 317
 318 // For compatibility
 319 wfRunHooks( 'LogPageValidTypes', array( &$wgLogTypes ) );
 320 wfRunHooks( 'LogPageLogName', array( &$wgLogNames ) );
 321 wfRunHooks( 'LogPageLogHeader', array( &$wgLogHeaders ) );
 322 wfRunHooks( 'LogPageActionText', array( &$wgLogActions ) );
 323
 324
 325 wfDebug( "\n" );
 326 $wgFullyInitialised = true;
 327 wfProfileOut( $fname.'-extensions' );
 328 wfProfileOut( $fname );
 329
 330 }
 331 ?>