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( 'AutoLoader.php' );
  49 require_once( 'GlobalFunctions.php' );
  50 require_once( 'Hooks.php' );
  51 require_once( 'Namespace.php' );
  52 require_once( 'User.php' );
  53 require_once( 'Skin.php' );
  54 require_once( 'OutputPage.php' );
  55 require_once( 'Title.php' );
  56 require_once( 'MagicWord.php' );
  57 require_once( 'Block.php' );
  58 require_once( 'MessageCache.php' );
  59 require_once( 'Parser.php' );
  60 require_once( 'ParserCache.php' );
  61 require_once( 'WebRequest.php' );
  62 require_once( 'LoadBalancer.php' );
  63 require_once( 'HistoryBlob.php' );
  64 require_once( 'ProxyTools.php' );
  65 require_once( 'ObjectCache.php' );
  66 require_once( 'WikiError.php' );
  67 require_once( 'SpecialPage.php' );
  68
  69 if ( $wgUseDynamicDates ) {
  70         require_once( 'DateFormatter.php' );
  71 }
  72
  73 wfProfileOut( $fname.'-includes' );
  74 wfProfileIn( $fname.'-misc1' );
  75
  76 $wgIP = false; # Load on demand
  77 $wgRequest = new WebRequest();
  78 if ( function_exists( 'posix_uname' ) ) {
  79         $wguname = posix_uname();
  80         $wgNodeName = $wguname['nodename'];
  81 } else {
  82         $wgNodeName = '';
  83 }
  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         $wgCookiePrefix = $wgDBname . '_' . $wgDBprefix;
 122 } elseif ( $wgSharedDB ) {
 123         $wgCookiePrefix = $wgSharedDB;
 124 } else {
 125         $wgCookiePrefix = $wgDBname;
 126 }
 127
 128 # If session.auto_start is there, we can't touch session name
 129 #
 130 if (!ini_get('session.auto_start')) {
 131         session_name( $wgCookiePrefix . '_session' );
 132 }
 133
 134 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgCookiePrefix.'Token'] ) ) ) {
 135         wfIncrStats( 'request_with_session' );
 136         User::SetupSession();
 137         $wgSessionStarted = true;
 138 } else {
 139         wfIncrStats( 'request_without_session' );
 140         $wgSessionStarted = false;
 141 }
 142
 143 wfProfileOut( $fname.'-SetupSession' );
 144 wfProfileIn( $fname.'-database' );
 145
 146 if ( !$wgDBservers ) {
 147         $wgDBservers = array(array(
 148                 'host' => $wgDBserver,
 149                 'user' => $wgDBuser,
 150                 'password' => $wgDBpassword,
 151                 'dbname' => $wgDBname,
 152                 'type' => $wgDBtype,
 153                 'load' => 1,
 154                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 155         ));
 156 }
 157 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 158 $wgLoadBalancer->loadMasterPos();
 159
 160 wfProfileOut( $fname.'-database' );
 161 wfProfileIn( $fname.'-language1' );
 162
 163 require_once( "$IP/languages/Language.php" );
 164
 165 function setupLangObj($langclass) {
 166         global $IP;
 167
 168         if( ! class_exists( $langclass ) ) {
 169                 # Default to English/UTF-8
 170                 $baseclass = 'LanguageUtf8';
 171                 require_once( "$IP/languages/$baseclass.php" );
 172                 $lc = strtolower(substr($langclass, 8));
 173                 $snip = "
 174                         class $langclass extends $baseclass {
 175                                 function getVariants() {
 176                                         return array(\"$lc\");
 177                                 }
 178
 179                         }";
 180                 eval($snip);
 181         }
 182
 183         $lang = new $langclass();
 184
 185         return $lang;
 186 }
 187
 188 # $wgLanguageCode may be changed later to fit with user preference.
 189 # The content language will remain fixed as per the configuration,
 190 # so let's keep it.
 191 $wgContLanguageCode = $wgLanguageCode;
 192 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 193
 194 $wgContLang = setupLangObj( $wgContLangClass );
 195 $wgContLang->initEncoding();
 196
 197 wfProfileOut( $fname.'-language1' );
 198 wfProfileIn( $fname.'-User' );
 199
 200 # Skin setup functions
 201 # Entries can be added to this variable during the inclusion
 202 # of the extension file. Skins can then perform any necessary initialisation.
 203 #
 204 foreach ( $wgSkinExtensionFunctions as $func ) {
 205         call_user_func( $func );
 206 }
 207
 208 if( !is_object( $wgAuth ) ) {
 209         require_once( 'AuthPlugin.php' );
 210         $wgAuth = new AuthPlugin();
 211 }
 212
 213 if( $wgCommandLineMode ) {
 214         # Used for some maintenance scripts; user session cookies can screw things up
 215         # when the database is in an in-between state.
 216         $wgUser = new User();
 217         # Prevent loading User settings from the DB.
 218         $wgUser->setLoaded( true );
 219 } else {
 220         $wgUser = null;
 221         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 222         if ($wgUser === null) {
 223                 $wgUser = User::loadFromSession();
 224         }
 225 }
 226
 227 wfProfileOut( $fname.'-User' );
 228 wfProfileIn( $fname.'-language2' );
 229
 230 // wgLanguageCode now specifically means the UI language
 231 $wgLanguageCode = $wgRequest->getText('uselang', '');
 232 if ($wgLanguageCode == '')
 233         $wgLanguageCode = $wgUser->getOption('language');
 234 # Validate $wgLanguageCode, which will soon be sent to an eval()
 235 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 236         $wgLanguageCode = $wgContLanguageCode;
 237 }
 238
 239 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 240
 241 if( $wgLangClass == $wgContLangClass ) {
 242         $wgLang = &$wgContLang;
 243 } else {
 244         wfSuppressWarnings();
 245         // Preload base classes to work around APC/PHP5 bug
 246         include_once("$IP/languages/$wgLangClass.deps.php");
 247         include_once("$IP/languages/$wgLangClass.php");
 248         wfRestoreWarnings();
 249
 250         $wgLang = setupLangObj( $wgLangClass );
 251 }
 252
 253 wfProfileOut( $fname.'-language2' );
 254 wfProfileIn( $fname.'-MessageCache' );
 255
 256 $wgMessageCache = new MessageCache;
 257 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 258
 259 wfProfileOut( $fname.'-MessageCache' );
 260
 261 #
 262 # I guess the warning about UI switching might still apply...
 263 #
 264 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 265 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 266 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 267 #
 268 # To disable it, the easiest thing could be to uncomment the
 269 # following; they should effectively disable the UI switch functionality
 270 #
 271 # $wgLangClass = $wgContLangClass;
 272 # $wgLanguageCode = $wgContLanguageCode;
 273 # $wgLang = $wgContLang;
 274 #
 275 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 276 #       places, including namespaces, dates in signatures, magic words,
 277 #       and links
 278 #
 279 # TODO: Need to look at the issue of input/output encoding
 280 #
 281
 282
 283 wfProfileIn( $fname.'-OutputPage' );
 284
 285 $wgOut = new OutputPage();
 286
 287 wfProfileOut( $fname.'-OutputPage' );
 288 wfProfileIn( $fname.'-misc2' );
 289
 290 $wgDeferredUpdateList = array();
 291 $wgPostCommitUpdateList = array();
 292
 293 $wgMagicWords = array();
 294 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 295
 296 if ( $wgUseXMLparser ) {
 297         require_once( 'ParserXML.php' );
 298         $wgParser = new ParserXML();
 299 } else {
 300         $wgParser = new Parser();
 301 }
 302 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 303 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 304 wfSeedRandom();
 305
 306 # Placeholders in case of DB error
 307 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 308 $wgArticle = new Article($wgTitle);
 309
 310 wfProfileOut( $fname.'-misc2' );
 311 wfProfileIn( $fname.'-extensions' );
 312
 313 # Extension setup functions for extensions other than skins
 314 # Entries should be added to this variable during the inclusion
 315 # of the extension file. This allows the extension to perform
 316 # any necessary initialisation in the fully initialised environment
 317 foreach ( $wgExtensionFunctions as $func ) {
 318         call_user_func( $func );
 319 }
 320
 321 // For compatibility
 322 wfRunHooks( 'LogPageValidTypes', array( &$wgLogTypes ) );
 323 wfRunHooks( 'LogPageLogName', array( &$wgLogNames ) );
 324 wfRunHooks( 'LogPageLogHeader', array( &$wgLogHeaders ) );
 325 wfRunHooks( 'LogPageActionText', array( &$wgLogActions ) );
 326
 327
 328 wfDebug( "\n" );
 329 $wgFullyInitialised = true;
 330 wfProfileOut( $fname.'-extensions' );
 331 wfProfileOut( $fname );
 332
 333 }
 334 ?>