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