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 wfProfileOut( $fname.'-includes' );
  76 wfProfileIn( $fname.'-misc1' );
  77
  78 $wgIP = wfGetIP();
  79 $wgRequest = new WebRequest();
  80
  81 # Useful debug output
  82 if ( $wgCommandLineMode ) {
  83         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  84 } elseif ( function_exists( 'getallheaders' ) ) {
  85         wfDebug( "\n\nStart request\n" );
  86         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  87         $headers = getallheaders();
  88         foreach ($headers as $name => $value) {
  89                 wfDebug( "$name: $value\n" );
  90         }
  91         wfDebug( "\n" );
  92 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
  93         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  94 }
  95
  96 # Disable linkscc except if the old existence check method is enabled
  97 if (!$wgUseOldExistenceCheck) {
  98         $wgEnablePersistentLC = false;
  99 }
 100
 101 wfProfileOut( $fname.'-misc1' );
 102 wfProfileIn( $fname.'-memcached' );
 103
 104 $wgMemc =& wfGetMainCache();
 105 $messageMemc =& wfGetMessageCacheStorage();
 106 $parserMemc =& wfGetParserCacheStorage();
 107
 108 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 109        "\nMessage cache: " . get_class( $messageMemc ) .
 110            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 111
 112 wfProfileOut( $fname.'-memcached' );
 113 wfProfileIn( $fname.'-SetupSession' );
 114
 115 if( !$wgCommandLineMode && ( isset( $_COOKIE[ini_get('session.name')] ) || isset( $_COOKIE[$wgDBname.'Token'] ) ) ) {
 116         User::SetupSession();
 117         $wgSessionStarted = true;
 118 } else {
 119         $wgSessionStarted = false;
 120 }
 121
 122 wfProfileOut( $fname.'-SetupSession' );
 123 wfProfileIn( $fname.'-database' );
 124
 125 if ( !$wgDBservers ) {
 126         $wgDBservers = array(array(
 127                 'host' => $wgDBserver,
 128                 'user' => $wgDBuser,
 129                 'password' => $wgDBpassword,
 130                 'dbname' => $wgDBname,
 131                 'type' => $wgDBtype,
 132                 'load' => 1,
 133                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 134         ));
 135 }
 136 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 137 $wgLoadBalancer->loadMasterPos();
 138
 139 wfProfileOut( $fname.'-database' );
 140 wfProfileIn( $fname.'-language1' );
 141
 142 require_once( "$IP/languages/Language.php" );
 143
 144 wfProfileOut( $fname.'-language1' );
 145 wfProfileIn( $fname.'-User' );
 146
 147 # Skin setup functions
 148 # Entries can be added to this variable during the inclusion
 149 # of the extension file. Skins can then perform any necessary initialisation.
 150 foreach ( $wgSkinExtensionFunctions as $func ) {
 151         $func();
 152 }
 153
 154 if( !is_object( $wgAuth ) ) {
 155         require_once( 'AuthPlugin.php' );
 156         $wgAuth = new AuthPlugin();
 157 }
 158
 159 if( $wgCommandLineMode ) {
 160         # Used for some maintenance scripts; user session cookies can screw things up
 161         # when the database is in an in-between state.
 162         $wgUser = new User();
 163         # Prevent loading User settings from the DB.
 164         $wgUser->setLoaded( true );
 165 } else {
 166         $wgUser = User::loadFromSession();
 167 }
 168
 169 wfProfileOut( $fname.'-User' );
 170 wfProfileIn( $fname.'-language2' );
 171
 172 function setupLangObj(&$langclass) {
 173         global $IP;
 174
 175         if( ! class_exists( $langclass ) ) {
 176                 # Default to English/UTF-8
 177                 $baseclass = 'LanguageUtf8';
 178                 require_once( "$IP/languages/$baseclass.php" );
 179                 $lc = strtolower(substr($langclass, 8));
 180                 $snip = "
 181                         class $langclass extends $baseclass {
 182                                 function getVariants() {
 183                                         return array(\"$lc\");
 184                                 }
 185
 186                         }";
 187                 eval($snip);
 188         }
 189
 190         $lang = new $langclass();
 191
 192         return $lang;
 193 }
 194
 195 # $wgLanguageCode may be changed later to fit with user preference.
 196 # The content language will remain fixed as per the configuration,
 197 # so let's keep it.
 198 $wgContLanguageCode = $wgLanguageCode;
 199 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 200
 201 $wgContLang = setupLangObj( $wgContLangClass );
 202 $wgContLang->initEncoding();
 203
 204 // set default user option from content language
 205 if( !$wgUser->mDataLoaded ) {
 206         $wgUser->loadDefaultFromLanguage();
 207 }
 208
 209 // wgLanguageCode now specifically means the UI language
 210 $wgLanguageCode = $wgUser->getOption('language');
 211 # Validate $wgLanguageCode, which will soon be sent to an eval()
 212 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z\-]*$/', $wgLanguageCode ) ) {
 213         $wgLanguageCode = $wgContLanguageCode;
 214 }
 215
 216 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 217
 218 if( $wgLangClass == $wgContLangClass ) {
 219         $wgLang = &$wgContLang;
 220 } else {
 221         wfSuppressWarnings();
 222         include_once("$IP/languages/$wgLangClass.php");
 223         wfRestoreWarnings();
 224
 225         $wgLang = setupLangObj( $wgLangClass );
 226 }
 227
 228 wfProfileOut( $fname.'-language' );
 229 wfProfileIn( $fname.'-MessageCache' );
 230
 231 $wgMessageCache = new MessageCache;
 232 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 233
 234 wfProfileOut( $fname.'-MessageCache' );
 235
 236 #
 237 # I guess the warning about UI switching might still apply...
 238 #
 239 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 240 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 241 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 242 #
 243 # To disable it, the easiest thing could be to uncomment the
 244 # following; they should effectively disable the UI switch functionality
 245 #
 246 # $wgLangClass = $wgContLangClass;
 247 # $wgLanguageCode = $wgContLanguageCode;
 248 # $wgLang = $wgContLang;
 249 #
 250 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 251 #       places, including namespaces, dates in signatures, magic words,
 252 #       and links
 253 #
 254 # TODO: Need to look at the issue of input/output encoding
 255 #
 256
 257
 258 wfProfileIn( $fname.'-OutputPage' );
 259
 260 $wgOut = new OutputPage();
 261
 262 wfProfileOut( $fname.'-OutputPage' );
 263 wfProfileIn( $fname.'-DateFormatter' );
 264
 265 if ( $wgUseDynamicDates ) {
 266         require_once( 'DateFormatter.php' );
 267         $wgDateFormatter = new DateFormatter;
 268 }
 269
 270 wfProfileOut( $fname.'-DateFormatter' );
 271 wfProfileIn( $fname.'-BlockCache' );
 272
 273 $wgBlockCache = new BlockCache( true );
 274
 275 wfProfileOut( $fname.'-BlockCache' );
 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         $func();
 309 }
 310
 311 wfDebug( "\n" );
 312 $wgFullyInitialised = true;
 313 wfProfileOut( $fname.'-extensions' );
 314 wfProfileOut( $fname );
 315
 316 }
 317 ?>