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