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         die( "Error, Setup.php must be included from the file scope, after DefaultSettings.php\n" );
  22 }
  23
  24 if( !isset( $wgProfiling ) )
  25         $wgProfiling = false;
  26
  27 if ( is_object($wgProfiler) ) {
  28         /* nada, everything should be done already */
  29 } elseif ( $wgProfiling and (0 == rand() % $wgProfileSampleRate ) ) {
  30         require_once( 'Profiling.php' );
  31         $wgProfiling = true;
  32         if ($wgProfilerType == "") {
  33                 $wgProfiler = new Profiler();
  34         } else {
  35                 $prclass="Profiler{$wgProfilerType}";
  36                 require_once( $prclass.".php" );
  37                 $wgProfiler = new $prclass();
  38         }
  39 } else {
  40         function wfProfileIn( $fn = '' ) {
  41                 global $hackwhere, $wgDBname;
  42                 $hackwhere[] = $fn;
  43                 if (function_exists("setproctitle"))
  44                         setproctitle($fn . " [$wgDBname]");
  45         }
  46         function wfProfileOut( $fn = '' ) {
  47                 global $hackwhere, $wgDBname;
  48                 if (count($hackwhere))
  49                         array_pop($hackwhere);
  50                 if (function_exists("setproctitle") && count($hackwhere))
  51                         setproctitle($hackwhere[count($hackwhere)-1] . " [$wgDBname]");
  52         }
  53         function wfGetProfilingOutput( $s, $e ) {}
  54         function wfProfileClose() {}
  55         function wfLogProfilingData() {}
  56 }
  57
  58 $fname = 'Setup.php';
  59 wfProfileIn( $fname );
  60 wfProfileIn( $fname.'-includes' );
  61
  62 require_once( 'GlobalFunctions.php' );
  63 require_once( 'Hooks.php' );
  64 require_once( 'Namespace.php' );
  65 require_once( 'RecentChange.php' );
  66 require_once( 'User.php' );
  67 require_once( 'Skin.php' );
  68 require_once( 'OutputPage.php' );
  69 require_once( 'LinkCache.php' );
  70 require_once( 'Title.php' );
  71 require_once( 'Article.php' );
  72 require_once( 'MagicWord.php' );
  73 require_once( 'Block.php' );
  74 require_once( 'MessageCache.php' );
  75 require_once( 'Parser.php' );
  76 require_once( 'ParserCache.php' );
  77 require_once( 'WebRequest.php' );
  78 require_once( 'LoadBalancer.php' );
  79 require_once( 'HistoryBlob.php' );
  80 require_once( 'ProxyTools.php' );
  81 require_once( 'ObjectCache.php' );
  82 require_once( 'WikiError.php' );
  83 require_once( 'SpecialPage.php' );
  84
  85 if ( $wgUseDynamicDates ) {
  86         require_once( 'DateFormatter.php' );
  87 }
  88
  89 wfProfileOut( $fname.'-includes' );
  90 wfProfileIn( $fname.'-misc1' );
  91
  92 $wgIP = false; # Load on demand
  93 $wgRequest = new WebRequest();
  94 if ( function_exists( 'posix_uname' ) ) {
  95         $wguname = posix_uname();
  96 }
  97 # Useful debug output
  98 if ( $wgCommandLineMode ) {
  99         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
 100 } elseif ( function_exists( 'getallheaders' ) ) {
 101         wfDebug( "\n\nStart request\n" );
 102         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 103         $headers = getallheaders();
 104         foreach ($headers as $name => $value) {
 105                 wfDebug( "$name: $value\n" );
 106         }
 107         wfDebug( "\n" );
 108 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
 109         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 110 }
 111
 112 if ( $wgSkipSkin ) {
 113         $wgSkipSkins[] = $wgSkipSkin;
 114 }
 115
 116 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 117
 118 wfProfileOut( $fname.'-misc1' );
 119 wfProfileIn( $fname.'-memcached' );
 120
 121 $wgMemc =& wfGetMainCache();
 122 $messageMemc =& wfGetMessageCacheStorage();
 123 $parserMemc =& wfGetParserCacheStorage();
 124
 125 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 126        "\nMessage cache: " . get_class( $messageMemc ) .
 127            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 128
 129 wfProfileOut( $fname.'-memcached' );
 130 wfProfileIn( $fname.'-SetupSession' );
 131
 132 if ( $wgDBprefix ) {
 133         session_name( $wgDBname . '_' . $wgDBprefix . '_session' );
 134 } else {
 135         session_name( $wgDBname . '_session' );
 136 }
 137
 138 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgDBname.'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 foreach ( $wgSkinExtensionFunctions as $func ) {
 208         require_once 'PersistentObject.php';
 209
 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         include_once("$IP/languages/$wgLangClass.php");
 251         wfRestoreWarnings();
 252
 253         $wgLang = setupLangObj( $wgLangClass );
 254 }
 255
 256 wfProfileOut( $fname.'-language2' );
 257 wfProfileIn( $fname.'-MessageCache' );
 258
 259 $wgMessageCache = new MessageCache;
 260 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 261
 262 wfProfileOut( $fname.'-MessageCache' );
 263
 264 #
 265 # I guess the warning about UI switching might still apply...
 266 #
 267 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 268 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 269 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 270 #
 271 # To disable it, the easiest thing could be to uncomment the
 272 # following; they should effectively disable the UI switch functionality
 273 #
 274 # $wgLangClass = $wgContLangClass;
 275 # $wgLanguageCode = $wgContLanguageCode;
 276 # $wgLang = $wgContLang;
 277 #
 278 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 279 #       places, including namespaces, dates in signatures, magic words,
 280 #       and links
 281 #
 282 # TODO: Need to look at the issue of input/output encoding
 283 #
 284
 285
 286 wfProfileIn( $fname.'-OutputPage' );
 287
 288 $wgOut = new OutputPage();
 289
 290 wfProfileOut( $fname.'-OutputPage' );
 291 wfProfileIn( $fname.'-misc2' );
 292
 293 $wgDeferredUpdateList = array();
 294 $wgPostCommitUpdateList = array();
 295
 296 $wgLinkCache = new LinkCache();
 297 $wgMagicWords = array();
 298 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 299 $wgParserCache = new ParserCache( $messageMemc );
 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         require_once 'PersistentObject.php';
 324
 325         call_user_func( $func );
 326 }
 327
 328 wfDebug( "\n" );
 329 $wgFullyInitialised = true;
 330 wfProfileOut( $fname.'-extensions' );
 331 wfProfileOut( $fname );
 332
 333 }
 334 ?>