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() % $wgProfileSampleRate ) ) {
  28         require_once( 'Profiling.php' );
  29         if ($wgProfilerType == "") {
  30                 $wgProfiler = new Profiler();
  31         } else {
  32                 $prclass="Profiler{$wgProfilerType}";
  33                 require_once( $prclass.".php" );
  34                 $wgProfiler = new $prclass();
  35         }
  36 } else {
  37         function wfProfileIn( $fn = '' ) {
  38                 global $hackwhere, $wgDBname;
  39                 $hackwhere[] = $fn;
  40                 if (function_exists("setproctitle"))
  41                         setproctitle($fn . " [$wgDBname]");
  42         }
  43         function wfProfileOut( $fn = '' ) {
  44                 global $hackwhere, $wgDBname;
  45                 if (count($hackwhere))
  46                         array_pop($hackwhere);
  47                 if (function_exists("setproctitle") && count($hackwhere))
  48                         setproctitle($hackwhere[count($hackwhere)-1] . " [$wgDBname]");
  49         }
  50         function wfGetProfilingOutput( $s, $e ) {}
  51         function wfProfileClose() {}
  52         function wfLogProfilingData() {}
  53 }
  54
  55 $fname = 'Setup.php';
  56 wfProfileIn( $fname );
  57 wfProfileIn( $fname.'-includes' );
  58
  59 require_once( 'GlobalFunctions.php' );
  60 require_once( 'Hooks.php' );
  61 require_once( 'Namespace.php' );
  62 require_once( 'RecentChange.php' );
  63 require_once( 'User.php' );
  64 require_once( 'Skin.php' );
  65 require_once( 'OutputPage.php' );
  66 require_once( 'LinkCache.php' );
  67 require_once( 'Title.php' );
  68 require_once( 'Article.php' );
  69 require_once( 'MagicWord.php' );
  70 require_once( 'Block.php' );
  71 require_once( 'MessageCache.php' );
  72 require_once( 'Parser.php' );
  73 require_once( 'ParserCache.php' );
  74 require_once( 'WebRequest.php' );
  75 require_once( 'LoadBalancer.php' );
  76 require_once( 'HistoryBlob.php' );
  77 require_once( 'ProxyTools.php' );
  78 require_once( 'ObjectCache.php' );
  79 require_once( 'WikiError.php' );
  80 require_once( 'SpecialPage.php' );
  81
  82 if ( $wgUseDynamicDates ) {
  83         require_once( 'DateFormatter.php' );
  84 }
  85
  86 wfProfileOut( $fname.'-includes' );
  87 wfProfileIn( $fname.'-misc1' );
  88
  89 $wgIP = false; # Load on demand
  90 $wgRequest = new WebRequest();
  91 if ( function_exists( 'posix_uname' ) ) {
  92         $wguname = posix_uname();
  93 }
  94 # Useful debug output
  95 if ( $wgCommandLineMode ) {
  96         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  97 } elseif ( function_exists( 'getallheaders' ) ) {
  98         wfDebug( "\n\nStart request\n" );
  99         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 100         $headers = getallheaders();
 101         foreach ($headers as $name => $value) {
 102                 wfDebug( "$name: $value\n" );
 103         }
 104         wfDebug( "\n" );
 105 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
 106         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 107 }
 108
 109 if ( $wgSkipSkin ) {
 110         $wgSkipSkins[] = $wgSkipSkin;
 111 }
 112
 113 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 114
 115 wfProfileOut( $fname.'-misc1' );
 116 wfProfileIn( $fname.'-memcached' );
 117
 118 $wgMemc =& wfGetMainCache();
 119 $messageMemc =& wfGetMessageCacheStorage();
 120 $parserMemc =& wfGetParserCacheStorage();
 121
 122 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 123        "\nMessage cache: " . get_class( $messageMemc ) .
 124            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 125
 126 wfProfileOut( $fname.'-memcached' );
 127 wfProfileIn( $fname.'-SetupSession' );
 128
 129 if ( $wgDBprefix ) {
 130         session_name( $wgDBname . '_' . $wgDBprefix . '_session' );
 131 } else {
 132         session_name( $wgDBname . '_session' );
 133 }
 134
 135 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgDBname.'Token'] ) ) ) {
 136         wfIncrStats( 'request_with_session' );
 137         User::SetupSession();
 138         $wgSessionStarted = true;
 139 } else {
 140         wfIncrStats( 'request_without_session' );
 141         $wgSessionStarted = false;
 142 }
 143
 144 wfProfileOut( $fname.'-SetupSession' );
 145 wfProfileIn( $fname.'-database' );
 146
 147 if ( !$wgDBservers ) {
 148         $wgDBservers = array(array(
 149                 'host' => $wgDBserver,
 150                 'user' => $wgDBuser,
 151                 'password' => $wgDBpassword,
 152                 'dbname' => $wgDBname,
 153                 'type' => $wgDBtype,
 154                 'load' => 1,
 155                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 156         ));
 157 }
 158 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 159 $wgLoadBalancer->loadMasterPos();
 160
 161 wfProfileOut( $fname.'-database' );
 162 wfProfileIn( $fname.'-language1' );
 163
 164 require_once( "$IP/languages/Language.php" );
 165
 166 function setupLangObj($langclass) {
 167         global $IP;
 168
 169         if( ! class_exists( $langclass ) ) {
 170                 # Default to English/UTF-8
 171                 $baseclass = 'LanguageUtf8';
 172                 require_once( "$IP/languages/$baseclass.php" );
 173                 $lc = strtolower(substr($langclass, 8));
 174                 $snip = "
 175                         class $langclass extends $baseclass {
 176                                 function getVariants() {
 177                                         return array(\"$lc\");
 178                                 }
 179
 180                         }";
 181                 eval($snip);
 182         }
 183
 184         $lang = new $langclass();
 185
 186         return $lang;
 187 }
 188
 189 # $wgLanguageCode may be changed later to fit with user preference.
 190 # The content language will remain fixed as per the configuration,
 191 # so let's keep it.
 192 $wgContLanguageCode = $wgLanguageCode;
 193 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 194
 195 $wgContLang = setupLangObj( $wgContLangClass );
 196 $wgContLang->initEncoding();
 197
 198 wfProfileOut( $fname.'-language1' );
 199 wfProfileIn( $fname.'-User' );
 200
 201 # Skin setup functions
 202 # Entries can be added to this variable during the inclusion
 203 # of the extension file. Skins can then perform any necessary initialisation.
 204 foreach ( $wgSkinExtensionFunctions as $func ) {
 205         require_once 'PersistentObject.php';
 206
 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         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 $wgLinkCache = new LinkCache();
 294 $wgMagicWords = array();
 295 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 296 $wgParserCache = new ParserCache( $messageMemc );
 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 foreach ( $wgExtensionFunctions as $func ) {
 320         require_once 'PersistentObject.php';
 321
 322         call_user_func( $func );
 323 }
 324
 325 wfDebug( "\n" );
 326 $wgFullyInitialised = true;
 327 wfProfileOut( $fname.'-extensions' );
 328 wfProfileOut( $fname );
 329
 330 }
 331 ?>