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( 'Title.php' );
  62 require_once( 'MagicWord.php' );
  63 require_once( 'Block.php' );
  64 require_once( 'MessageCache.php' );
  65 require_once( 'Parser.php' );
  66 require_once( 'ParserCache.php' );
  67 require_once( 'WebRequest.php' );
  68 require_once( 'LoadBalancer.php' );
  69 require_once( 'HistoryBlob.php' );
  70 require_once( 'ProxyTools.php' );
  71 require_once( 'ObjectCache.php' );
  72 require_once( 'SpecialPage.php' );
  73
  74 if ( $wgUseDynamicDates ) {
  75         require_once( 'DateFormatter.php' );
  76 }
  77
  78 wfProfileOut( $fname.'-includes' );
  79 wfProfileIn( $fname.'-misc1' );
  80
  81 $wgIP = false; # Load on demand
  82 $wgRequest = new WebRequest();
  83 if ( function_exists( 'posix_uname' ) ) {
  84         $wguname = posix_uname();
  85         $wgNodeName = $wguname['nodename'];
  86 } else {
  87         $wgNodeName = '';
  88 }
  89
  90 # Useful debug output
  91 if ( $wgCommandLineMode ) {
  92         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  93 } elseif ( function_exists( 'getallheaders' ) ) {
  94         wfDebug( "\n\nStart request\n" );
  95         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  96         $headers = getallheaders();
  97         foreach ($headers as $name => $value) {
  98                 wfDebug( "$name: $value\n" );
  99         }
 100         wfDebug( "\n" );
 101 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
 102         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 103 }
 104
 105 if ( $wgSkipSkin ) {
 106         $wgSkipSkins[] = $wgSkipSkin;
 107 }
 108
 109 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 110
 111 wfProfileOut( $fname.'-misc1' );
 112 wfProfileIn( $fname.'-memcached' );
 113
 114 $wgMemc =& wfGetMainCache();
 115 $messageMemc =& wfGetMessageCacheStorage();
 116 $parserMemc =& wfGetParserCacheStorage();
 117
 118 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 119        "\nMessage cache: " . get_class( $messageMemc ) .
 120            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 121
 122 wfProfileOut( $fname.'-memcached' );
 123 wfProfileIn( $fname.'-SetupSession' );
 124
 125 if ( $wgDBprefix ) {
 126         $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 127 } elseif ( $wgSharedDB ) {
 128         $wgCookiePrefix = $wgSharedDB;
 129 } else {
 130         $wgCookiePrefix = $wgDBname;
 131 }
 132
 133 # If session.auto_start is there, we can't touch session name
 134 #
 135 if (!ini_get('session.auto_start')) {
 136         session_name( $wgCookiePrefix . '_session' );
 137 }
 138
 139 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgCookiePrefix.'Token'] ) ) ) {
 140         wfIncrStats( 'request_with_session' );
 141         User::SetupSession();
 142         $wgSessionStarted = true;
 143 } else {
 144         wfIncrStats( 'request_without_session' );
 145         $wgSessionStarted = false;
 146 }
 147
 148 wfProfileOut( $fname.'-SetupSession' );
 149 wfProfileIn( $fname.'-database' );
 150
 151 if ( !$wgDBservers ) {
 152         $wgDBservers = array(array(
 153                 'host' => $wgDBserver,
 154                 'user' => $wgDBuser,
 155                 'password' => $wgDBpassword,
 156                 'dbname' => $wgDBname,
 157                 'type' => $wgDBtype,
 158                 'load' => 1,
 159                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 160         ));
 161 }
 162 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 163 $wgLoadBalancer->loadMasterPos();
 164
 165 wfProfileOut( $fname.'-database' );
 166 wfProfileIn( $fname.'-language1' );
 167
 168 require_once( "$IP/languages/Language.php" );
 169
 170 function setupLangObj($langclass) {
 171         global $IP;
 172
 173         if( ! class_exists( $langclass ) ) {
 174                 # Default to English/UTF-8
 175                 $baseclass = 'LanguageUtf8';
 176                 require_once( "$IP/languages/$baseclass.php" );
 177                 $lc = strtolower(substr($langclass, 8));
 178                 $snip = "
 179                         class $langclass extends $baseclass {
 180                                 function getVariants() {
 181                                         return array(\"$lc\");
 182                                 }
 183
 184                         }";
 185                 eval($snip);
 186         }
 187
 188         $lang = new $langclass();
 189
 190         return $lang;
 191 }
 192
 193 # $wgLanguageCode may be changed later to fit with user preference.
 194 # The content language will remain fixed as per the configuration,
 195 # so let's keep it.
 196 $wgContLanguageCode = $wgLanguageCode;
 197 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 198
 199 $wgContLang = setupLangObj( $wgContLangClass );
 200 $wgContLang->initEncoding();
 201
 202 wfProfileOut( $fname.'-language1' );
 203 wfProfileIn( $fname.'-User' );
 204
 205 # Skin setup functions
 206 # Entries can be added to this variable during the inclusion
 207 # of the extension file. Skins can then perform any necessary initialisation.
 208 #
 209 foreach ( $wgSkinExtensionFunctions as $func ) {
 210         call_user_func( $func );
 211 }
 212
 213 if( !is_object( $wgAuth ) ) {
 214         require_once( 'AuthPlugin.php' );
 215         $wgAuth = new AuthPlugin();
 216 }
 217
 218 if( $wgCommandLineMode ) {
 219         # Used for some maintenance scripts; user session cookies can screw things up
 220         # when the database is in an in-between state.
 221         $wgUser = new User();
 222         # Prevent loading User settings from the DB.
 223         $wgUser->setLoaded( true );
 224 } else {
 225         $wgUser = null;
 226         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 227         if ($wgUser === null) {
 228                 $wgUser = User::loadFromSession();
 229         }
 230 }
 231
 232 wfProfileOut( $fname.'-User' );
 233 wfProfileIn( $fname.'-language2' );
 234
 235 // wgLanguageCode now specifically means the UI language
 236 $wgLanguageCode = $wgRequest->getText('uselang', '');
 237 if ($wgLanguageCode == '')
 238         $wgLanguageCode = $wgUser->getOption('language');
 239 # Validate $wgLanguageCode, which will soon be sent to an eval()
 240 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 241         $wgLanguageCode = $wgContLanguageCode;
 242 }
 243
 244 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 245
 246 if( $wgLangClass == $wgContLangClass ) {
 247         $wgLang = &$wgContLang;
 248 } else {
 249         wfSuppressWarnings();
 250         // Preload base classes to work around APC/PHP5 bug
 251         include_once("$IP/languages/$wgLangClass.deps.php");
 252         include_once("$IP/languages/$wgLangClass.php");
 253         wfRestoreWarnings();
 254
 255         $wgLang = setupLangObj( $wgLangClass );
 256 }
 257
 258 wfProfileOut( $fname.'-language2' );
 259 wfProfileIn( $fname.'-MessageCache' );
 260
 261 $wgMessageCache = new MessageCache;
 262 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 263
 264 wfProfileOut( $fname.'-MessageCache' );
 265
 266 #
 267 # I guess the warning about UI switching might still apply...
 268 #
 269 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 270 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 271 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 272 #
 273 # To disable it, the easiest thing could be to uncomment the
 274 # following; they should effectively disable the UI switch functionality
 275 #
 276 # $wgLangClass = $wgContLangClass;
 277 # $wgLanguageCode = $wgContLanguageCode;
 278 # $wgLang = $wgContLang;
 279 #
 280 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 281 #       places, including namespaces, dates in signatures, magic words,
 282 #       and links
 283 #
 284 # TODO: Need to look at the issue of input/output encoding
 285 #
 286
 287
 288 wfProfileIn( $fname.'-OutputPage' );
 289
 290 $wgOut = new OutputPage();
 291
 292 wfProfileOut( $fname.'-OutputPage' );
 293 wfProfileIn( $fname.'-misc2' );
 294
 295 $wgDeferredUpdateList = array();
 296 $wgPostCommitUpdateList = array();
 297
 298 $wgMagicWords = array();
 299 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 300
 301 if ( $wgUseXMLparser ) {
 302         require_once( 'ParserXML.php' );
 303         $wgParser = new ParserXML();
 304 } else {
 305         $wgParser = new Parser();
 306 }
 307 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 308 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 309 wfSeedRandom();
 310
 311 # Placeholders in case of DB error
 312 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 313 $wgArticle = new Article($wgTitle);
 314
 315 wfProfileOut( $fname.'-misc2' );
 316 wfProfileIn( $fname.'-extensions' );
 317
 318 # Extension setup functions for extensions other than skins
 319 # Entries should be added to this variable during the inclusion
 320 # of the extension file. This allows the extension to perform
 321 # any necessary initialisation in the fully initialised environment
 322 foreach ( $wgExtensionFunctions as $func ) {
 323         call_user_func( $func );
 324 }
 325
 326 // For compatibility
 327 wfRunHooks( 'LogPageValidTypes', array( &$wgLogTypes ) );
 328 wfRunHooks( 'LogPageLogName', array( &$wgLogNames ) );
 329 wfRunHooks( 'LogPageLogHeader', array( &$wgLogHeaders ) );
 330 wfRunHooks( 'LogPageActionText', array( &$wgLogActions ) );
 331
 332
 333 wfDebug( "\n" );
 334 $wgFullyInitialised = true;
 335 wfProfileOut( $fname.'-extensions' );
 336 wfProfileOut( $fname );
 337
 338 }
 339 ?>