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