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