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         echo "Error, Setup.php must be included from the file scope, after DefaultSettings.php\n";
  22         die( -1 );
  23 }
  24
  25 if( !isset( $wgProfiling ) )
  26         $wgProfiling = false;
  27
  28 if ( function_exists( 'wfProfileIn' ) ) {
  29         /* nada, everything should be done already */
  30 } elseif ( $wgProfiling and (0 == rand() % $wgProfileSampleRate ) ) {
  31         require_once( 'Profiling.php' );
  32         $wgProfiling = true;
  33         if ($wgProfilerType == "") {
  34                 $wgProfiler = new Profiler();
  35         } else {
  36                 $prclass="Profiler{$wgProfilerType}";
  37                 require_once( $prclass.".php" );
  38                 $wgProfiler = new $prclass();
  39         }
  40 } else {
  41         require_once( 'ProfilerStub.php' );
  42 }
  43
  44 $fname = 'Setup.php';
  45 wfProfileIn( $fname );
  46 wfProfileIn( $fname.'-includes' );
  47
  48 require_once( 'GlobalFunctions.php' );
  49 require_once( 'Hooks.php' );
  50 require_once( 'Namespace.php' );
  51 require_once( 'User.php' );
  52 require_once( 'Skin.php' );
  53 require_once( 'OutputPage.php' );
  54 require_once( 'LinkCache.php' );
  55 require_once( 'LinkBatch.php' );
  56 require_once( 'Title.php' );
  57 require_once( 'Article.php' );
  58 require_once( 'MagicWord.php' );
  59 require_once( 'Block.php' );
  60 require_once( 'MessageCache.php' );
  61 require_once( 'Parser.php' );
  62 require_once( 'ParserCache.php' );
  63 require_once( 'WebRequest.php' );
  64 require_once( 'LoadBalancer.php' );
  65 require_once( 'HistoryBlob.php' );
  66 require_once( 'ProxyTools.php' );
  67 require_once( 'ObjectCache.php' );
  68 require_once( 'WikiError.php' );
  69 require_once( 'SpecialPage.php' );
  70
  71 if ( $wgUseDynamicDates ) {
  72         require_once( 'DateFormatter.php' );
  73 }
  74
  75 wfProfileOut( $fname.'-includes' );
  76 wfProfileIn( $fname.'-misc1' );
  77
  78 $wgIP = false; # Load on demand
  79 $wgRequest = new WebRequest();
  80 if ( function_exists( 'posix_uname' ) ) {
  81         $wguname = posix_uname();
  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 if ( $wgSkipSkin ) {
  99         $wgSkipSkins[] = $wgSkipSkin;
 100 }
 101
 102 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 103
 104 wfProfileOut( $fname.'-misc1' );
 105 wfProfileIn( $fname.'-memcached' );
 106
 107 $wgMemc =& wfGetMainCache();
 108 $messageMemc =& wfGetMessageCacheStorage();
 109 $parserMemc =& wfGetParserCacheStorage();
 110
 111 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 112        "\nMessage cache: " . get_class( $messageMemc ) .
 113            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 114
 115 wfProfileOut( $fname.'-memcached' );
 116 wfProfileIn( $fname.'-SetupSession' );
 117
 118 if ( $wgDBprefix ) {
 119         $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 120 } elseif ( $wgSharedDB ) {
 121         $wgCookiePrefix = $wgSharedDB;
 122 } else {
 123         $wgCookiePrefix = $wgDBname;
 124 }
 125
 126 # If session.auto_start is there, we can't touch session name
 127 #
 128 if (!ini_get('session.auto_start')) {
 129         session_name( $wgCookiePrefix . '_session' );
 130 }
 131
 132 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgCookiePrefix.'Token'] ) ) ) {
 133         wfIncrStats( 'request_with_session' );
 134         User::SetupSession();
 135         $wgSessionStarted = true;
 136 } else {
 137         wfIncrStats( 'request_without_session' );
 138         $wgSessionStarted = false;
 139 }
 140
 141 wfProfileOut( $fname.'-SetupSession' );
 142 wfProfileIn( $fname.'-database' );
 143
 144 if ( !$wgDBservers ) {
 145         $wgDBservers = array(array(
 146                 'host' => $wgDBserver,
 147                 'user' => $wgDBuser,
 148                 'password' => $wgDBpassword,
 149                 'dbname' => $wgDBname,
 150                 'type' => $wgDBtype,
 151                 'load' => 1,
 152                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 153         ));
 154 }
 155 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 156 $wgLoadBalancer->loadMasterPos();
 157
 158 wfProfileOut( $fname.'-database' );
 159 wfProfileIn( $fname.'-language1' );
 160
 161 require_once( "$IP/languages/Language.php" );
 162
 163 function setupLangObj($langclass) {
 164         global $IP;
 165
 166         if( ! class_exists( $langclass ) ) {
 167                 # Default to English/UTF-8
 168                 $baseclass = 'LanguageUtf8';
 169                 require_once( "$IP/languages/$baseclass.php" );
 170                 $lc = strtolower(substr($langclass, 8));
 171                 $snip = "
 172                         class $langclass extends $baseclass {
 173                                 function getVariants() {
 174                                         return array(\"$lc\");
 175                                 }
 176
 177                         }";
 178                 eval($snip);
 179         }
 180
 181         $lang = new $langclass();
 182
 183         return $lang;
 184 }
 185
 186 # $wgLanguageCode may be changed later to fit with user preference.
 187 # The content language will remain fixed as per the configuration,
 188 # so let's keep it.
 189 $wgContLanguageCode = $wgLanguageCode;
 190 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 191
 192 $wgContLang = setupLangObj( $wgContLangClass );
 193 $wgContLang->initEncoding();
 194
 195 wfProfileOut( $fname.'-language1' );
 196 wfProfileIn( $fname.'-User' );
 197
 198 # Skin setup functions
 199 # Entries can be added to this variable during the inclusion
 200 # of the extension file. Skins can then perform any necessary initialisation.
 201 #
 202 # require_once is slow even on the second call, so this needs to be outside the loop
 203 if ( count( $wgSkinExtensionFunctions ) ) {
 204         require_once( 'PersistentObject.php' );
 205 }
 206 foreach ( $wgSkinExtensionFunctions as $func ) {
 207         call_user_func( $func );
 208 }
 209
 210 if( !is_object( $wgAuth ) ) {
 211         require_once( 'AuthPlugin.php' );
 212         $wgAuth = new AuthPlugin();
 213 }
 214
 215 if( $wgCommandLineMode ) {
 216         # Used for some maintenance scripts; user session cookies can screw things up
 217         # when the database is in an in-between state.
 218         $wgUser = new User();
 219         # Prevent loading User settings from the DB.
 220         $wgUser->setLoaded( true );
 221 } else {
 222         $wgUser = null;
 223         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 224         if ($wgUser === null) {
 225                 $wgUser = User::loadFromSession();
 226         }
 227 }
 228
 229 wfProfileOut( $fname.'-User' );
 230 wfProfileIn( $fname.'-language2' );
 231
 232 // wgLanguageCode now specifically means the UI language
 233 $wgLanguageCode = $wgRequest->getText('uselang', '');
 234 if ($wgLanguageCode == '')
 235         $wgLanguageCode = $wgUser->getOption('language');
 236 # Validate $wgLanguageCode, which will soon be sent to an eval()
 237 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 238         $wgLanguageCode = $wgContLanguageCode;
 239 }
 240
 241 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 242
 243 if( $wgLangClass == $wgContLangClass ) {
 244         $wgLang = &$wgContLang;
 245 } else {
 246         wfSuppressWarnings();
 247         // Preload base classes to work around APC/PHP5 bug
 248         include_once("$IP/languages/$wgLangClass.deps.php");
 249         include_once("$IP/languages/$wgLangClass.php");
 250         wfRestoreWarnings();
 251
 252         $wgLang = setupLangObj( $wgLangClass );
 253 }
 254
 255 wfProfileOut( $fname.'-language2' );
 256 wfProfileIn( $fname.'-MessageCache' );
 257
 258 $wgMessageCache = new MessageCache;
 259 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 260
 261 wfProfileOut( $fname.'-MessageCache' );
 262
 263 #
 264 # I guess the warning about UI switching might still apply...
 265 #
 266 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 267 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 268 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 269 #
 270 # To disable it, the easiest thing could be to uncomment the
 271 # following; they should effectively disable the UI switch functionality
 272 #
 273 # $wgLangClass = $wgContLangClass;
 274 # $wgLanguageCode = $wgContLanguageCode;
 275 # $wgLang = $wgContLang;
 276 #
 277 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 278 #       places, including namespaces, dates in signatures, magic words,
 279 #       and links
 280 #
 281 # TODO: Need to look at the issue of input/output encoding
 282 #
 283
 284
 285 wfProfileIn( $fname.'-OutputPage' );
 286
 287 $wgOut = new OutputPage();
 288
 289 wfProfileOut( $fname.'-OutputPage' );
 290 wfProfileIn( $fname.'-misc2' );
 291
 292 $wgDeferredUpdateList = array();
 293 $wgPostCommitUpdateList = array();
 294
 295 $wgMagicWords = array();
 296 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 297
 298 if ( $wgUseXMLparser ) {
 299         require_once( 'ParserXML.php' );
 300         $wgParser = new ParserXML();
 301 } else {
 302         $wgParser = new Parser();
 303 }
 304 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 305 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 306 wfSeedRandom();
 307
 308 # Placeholders in case of DB error
 309 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 310 $wgArticle = new Article($wgTitle);
 311
 312 wfProfileOut( $fname.'-misc2' );
 313 wfProfileIn( $fname.'-extensions' );
 314
 315 # Extension setup functions for extensions other than skins
 316 # Entries should be added to this variable during the inclusion
 317 # of the extension file. This allows the extension to perform
 318 # any necessary initialisation in the fully initialised environment
 319 if ( count( $wgExtensionFunctions ) ) {
 320         require_once( 'PersistentObject.php' );
 321 }
 322 foreach ( $wgExtensionFunctions as $func ) {
 323         call_user_func( $func );
 324 }
 325
 326 wfDebug( "\n" );
 327 $wgFullyInitialised = true;
 328 wfProfileOut( $fname.'-extensions' );
 329 wfProfileOut( $fname );
 330
 331 }
 332 ?>