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