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