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 if ( function_exists( 'wfProfileIn' ) ) {
  29         /* nada, everything should be done already */
  30 } elseif ( $wgProfiling and (0 == rand() % $wgProfileSampleRate ) ) {
  31         require_once( 'Profiling.php' );
  32         $wgProfiling = true;
  33         if ($wgProfilerType == "") {
  34                 $wgProfiler = new Profiler();
  35         } else {
  36                 $prclass="Profiler{$wgProfilerType}";
  37                 require_once( $prclass.".php" );
  38                 $wgProfiler = new $prclass();
  39         }
  40 } else {
  41         require_once( 'ProfilerStub.php' );
  42 }
  43
  44 $fname = 'Setup.php';
  45 wfProfileIn( $fname );
  46
  47 wfProfileIn( $fname.'-exception' );
  48 require_once( 'Exception.php' );
  49 wfInstallExceptionHandler();
  50 wfProfileOut( $fname.'-exception' );
  51
  52 wfProfileIn( $fname.'-includes' );
  53
  54 require_once( 'AutoLoader.php' );
  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( 'ParserCache.php' );
  66 require_once( 'WebRequest.php' );
  67 require_once( 'LoadBalancer.php' );
  68 require_once( 'HistoryBlob.php' );
  69 require_once( 'ProxyTools.php' );
  70 require_once( 'ObjectCache.php' );
  71 require_once( 'SpecialPage.php' );
  72
  73 if ( $wgUseDynamicDates ) {
  74         require_once( 'DateFormatter.php' );
  75 }
  76
  77 wfProfileOut( $fname.'-includes' );
  78 wfProfileIn( $fname.'-misc1' );
  79
  80 $wgIP = false; # Load on demand
  81 $wgRequest = new WebRequest();
  82 if ( function_exists( 'posix_uname' ) ) {
  83         $wguname = posix_uname();
  84         $wgNodeName = $wguname['nodename'];
  85 } else {
  86         $wgNodeName = '';
  87 }
  88
  89 # Useful debug output
  90 if ( $wgCommandLineMode ) {
  91         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  92 } elseif ( function_exists( 'getallheaders' ) ) {
  93         wfDebug( "\n\nStart request\n" );
  94         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  95         $headers = getallheaders();
  96         foreach ($headers as $name => $value) {
  97                 wfDebug( "$name: $value\n" );
  98         }
  99         wfDebug( "\n" );
 100 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
 101         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 102 }
 103
 104 if ( $wgSkipSkin ) {
 105         $wgSkipSkins[] = $wgSkipSkin;
 106 }
 107
 108 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 109
 110 wfProfileOut( $fname.'-misc1' );
 111 wfProfileIn( $fname.'-memcached' );
 112
 113 $wgMemc =& wfGetMainCache();
 114 $messageMemc =& wfGetMessageCacheStorage();
 115 $parserMemc =& wfGetParserCacheStorage();
 116
 117 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 118        "\nMessage cache: " . get_class( $messageMemc ) .
 119            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 120
 121 wfProfileOut( $fname.'-memcached' );
 122 wfProfileIn( $fname.'-SetupSession' );
 123
 124 if ( $wgDBprefix ) {
 125         $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 126 } elseif ( $wgSharedDB ) {
 127         $wgCookiePrefix = $wgSharedDB;
 128 } else {
 129         $wgCookiePrefix = $wgDBname;
 130 }
 131
 132 # If session.auto_start is there, we can't touch session name
 133 #
 134 if (!ini_get('session.auto_start')) {
 135         session_name( $wgCookiePrefix . '_session' );
 136 }
 137
 138 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgCookiePrefix.'Token'] ) ) ) {
 139         wfIncrStats( 'request_with_session' );
 140         User::SetupSession();
 141         $wgSessionStarted = true;
 142 } else {
 143         wfIncrStats( 'request_without_session' );
 144         $wgSessionStarted = false;
 145 }
 146
 147 wfProfileOut( $fname.'-SetupSession' );
 148 wfProfileIn( $fname.'-database' );
 149
 150 if ( !$wgDBservers ) {
 151         $wgDBservers = array(array(
 152                 'host' => $wgDBserver,
 153                 'user' => $wgDBuser,
 154                 'password' => $wgDBpassword,
 155                 'dbname' => $wgDBname,
 156                 'type' => $wgDBtype,
 157                 'load' => 1,
 158                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 159         ));
 160 }
 161 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 162 $wgLoadBalancer->loadMasterPos();
 163
 164 wfProfileOut( $fname.'-database' );
 165 wfProfileIn( $fname.'-language1' );
 166
 167 require_once( "$IP/languages/Language.php" );
 168
 169 function setupLangObj($langclass) {
 170         global $IP;
 171
 172         if( ! class_exists( $langclass ) ) {
 173                 # Default to English/UTF-8
 174                 $baseclass = 'LanguageUtf8';
 175                 require_once( "$IP/languages/$baseclass.php" );
 176                 $lc = strtolower(substr($langclass, 8));
 177                 $snip = "
 178                         class $langclass extends $baseclass {
 179                                 function getVariants() {
 180                                         return array(\"$lc\");
 181                                 }
 182
 183                         }";
 184                 eval($snip);
 185         }
 186
 187         $lang = new $langclass();
 188
 189         return $lang;
 190 }
 191
 192 # $wgLanguageCode may be changed later to fit with user preference.
 193 # The content language will remain fixed as per the configuration,
 194 # so let's keep it.
 195 $wgContLanguageCode = $wgLanguageCode;
 196 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 197
 198 $wgContLang = setupLangObj( $wgContLangClass );
 199 $wgContLang->initEncoding();
 200
 201 wfProfileOut( $fname.'-language1' );
 202 wfProfileIn( $fname.'-User' );
 203
 204 # Skin setup functions
 205 # Entries can be added to this variable during the inclusion
 206 # of the extension file. Skins can then perform any necessary initialisation.
 207 #
 208 foreach ( $wgSkinExtensionFunctions as $func ) {
 209         call_user_func( $func );
 210 }
 211
 212 if( !is_object( $wgAuth ) ) {
 213         require_once( 'AuthPlugin.php' );
 214         $wgAuth = new AuthPlugin();
 215 }
 216
 217 if( $wgCommandLineMode ) {
 218         # Used for some maintenance scripts; user session cookies can screw things up
 219         # when the database is in an in-between state.
 220         $wgUser = new User();
 221         # Prevent loading User settings from the DB.
 222         $wgUser->setLoaded( true );
 223 } else {
 224         $wgUser = null;
 225         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 226         if ($wgUser === null) {
 227                 $wgUser = User::loadFromSession();
 228         }
 229 }
 230
 231 wfProfileOut( $fname.'-User' );
 232 wfProfileIn( $fname.'-language2' );
 233
 234 // wgLanguageCode now specifically means the UI language
 235 $wgLanguageCode = $wgRequest->getText('uselang', '');
 236 if ($wgLanguageCode == '')
 237         $wgLanguageCode = $wgUser->getOption('language');
 238 # Validate $wgLanguageCode, which will soon be sent to an eval()
 239 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 240         $wgLanguageCode = $wgContLanguageCode;
 241 }
 242
 243 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 244
 245 if( $wgLangClass == $wgContLangClass ) {
 246         $wgLang = &$wgContLang;
 247 } else {
 248         wfSuppressWarnings();
 249         // Preload base classes to work around APC/PHP5 bug
 250         include_once("$IP/languages/$wgLangClass.deps.php");
 251         include_once("$IP/languages/$wgLangClass.php");
 252         wfRestoreWarnings();
 253
 254         $wgLang = setupLangObj( $wgLangClass );
 255 }
 256
 257 wfProfileOut( $fname.'-language2' );
 258 wfProfileIn( $fname.'-MessageCache' );
 259
 260 $wgMessageCache = new MessageCache;
 261 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 262
 263 wfProfileOut( $fname.'-MessageCache' );
 264
 265 #
 266 # I guess the warning about UI switching might still apply...
 267 #
 268 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 269 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 270 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 271 #
 272 # To disable it, the easiest thing could be to uncomment the
 273 # following; they should effectively disable the UI switch functionality
 274 #
 275 # $wgLangClass = $wgContLangClass;
 276 # $wgLanguageCode = $wgContLanguageCode;
 277 # $wgLang = $wgContLang;
 278 #
 279 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 280 #       places, including namespaces, dates in signatures, magic words,
 281 #       and links
 282 #
 283 # TODO: Need to look at the issue of input/output encoding
 284 #
 285
 286
 287 wfProfileIn( $fname.'-OutputPage' );
 288
 289 $wgOut = new OutputPage();
 290
 291 wfProfileOut( $fname.'-OutputPage' );
 292 wfProfileIn( $fname.'-misc2' );
 293
 294 $wgDeferredUpdateList = array();
 295 $wgPostCommitUpdateList = array();
 296
 297 $wgMagicWords = array();
 298 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 299
 300 if ( $wgUseXMLparser ) {
 301         require_once( 'ParserXML.php' );
 302         $wgParser = new ParserXML();
 303 } else {
 304         $wgParser = new Parser();
 305 }
 306 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 307 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 308 wfSeedRandom();
 309
 310 # Placeholders in case of DB error
 311 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 312 $wgArticle = new Article($wgTitle);
 313
 314 wfProfileOut( $fname.'-misc2' );
 315 wfProfileIn( $fname.'-extensions' );
 316
 317 # Extension setup functions for extensions other than skins
 318 # Entries should be added to this variable during the inclusion
 319 # of the extension file. This allows the extension to perform
 320 # any necessary initialisation in the fully initialised environment
 321 foreach ( $wgExtensionFunctions as $func ) {
 322         call_user_func( $func );
 323 }
 324
 325 // For compatibility
 326 wfRunHooks( 'LogPageValidTypes', array( &$wgLogTypes ) );
 327 wfRunHooks( 'LogPageLogName', array( &$wgLogNames ) );
 328 wfRunHooks( 'LogPageLogHeader', array( &$wgLogHeaders ) );
 329 wfRunHooks( 'LogPageActionText', array( &$wgLogActions ) );
 330
 331
 332 wfDebug( "\n" );
 333 $wgFullyInitialised = true;
 334 wfProfileOut( $fname.'-extensions' );
 335 wfProfileOut( $fname );
 336
 337 }
 338 ?>