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 $wguname = @posix_uname();
  92
  93 # Useful debug output
  94 if ( $wgCommandLineMode ) {
  95         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  96 } elseif ( function_exists( 'getallheaders' ) ) {
  97         wfDebug( "\n\nStart request\n" );
  98         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  99         $headers = getallheaders();
 100         foreach ($headers as $name => $value) {
 101                 wfDebug( "$name: $value\n" );
 102         }
 103         wfDebug( "\n" );
 104 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
 105         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
 106 }
 107
 108 if ( $wgSkipSkin ) {
 109         $wgSkipSkins[] = $wgSkipSkin;
 110 }
 111
 112 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 113
 114 wfProfileOut( $fname.'-misc1' );
 115 wfProfileIn( $fname.'-memcached' );
 116
 117 $wgMemc =& wfGetMainCache();
 118 $messageMemc =& wfGetMessageCacheStorage();
 119 $parserMemc =& wfGetParserCacheStorage();
 120
 121 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 122        "\nMessage cache: " . get_class( $messageMemc ) .
 123            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 124
 125 wfProfileOut( $fname.'-memcached' );
 126 wfProfileIn( $fname.'-SetupSession' );
 127
 128 if ( $wgDBprefix ) {
 129         session_name( $wgDBname . '_' . $wgDBprefix . '_session' );
 130 } else {
 131         session_name( $wgDBname . '_session' );
 132 }
 133
 134 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgDBname.'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 foreach ( $wgSkinExtensionFunctions as $func ) {
 204         require_once 'PersistentObject.php';
 205
 206         call_user_func( $func );
 207 }
 208
 209 if( !is_object( $wgAuth ) ) {
 210         require_once( 'AuthPlugin.php' );
 211         $wgAuth = new AuthPlugin();
 212 }
 213
 214 if( $wgCommandLineMode ) {
 215         # Used for some maintenance scripts; user session cookies can screw things up
 216         # when the database is in an in-between state.
 217         $wgUser = new User();
 218         # Prevent loading User settings from the DB.
 219         $wgUser->setLoaded( true );
 220 } else {
 221         $wgUser = null;
 222         wfRunHooks('AutoAuthenticate',array(&$wgUser));
 223         if ($wgUser === null) {
 224                 $wgUser = User::loadFromSession();
 225         }
 226 }
 227
 228 wfProfileOut( $fname.'-User' );
 229 wfProfileIn( $fname.'-language2' );
 230
 231 // wgLanguageCode now specifically means the UI language
 232 $wgLanguageCode = $wgRequest->getText('uselang', '');
 233 if ($wgLanguageCode == '')
 234         $wgLanguageCode = $wgUser->getOption('language');
 235 # Validate $wgLanguageCode, which will soon be sent to an eval()
 236 if( empty( $wgLanguageCode ) || !preg_match( '/^[a-z]+(-[a-z]+)?$/', $wgLanguageCode ) ) {
 237         $wgLanguageCode = $wgContLanguageCode;
 238 }
 239
 240 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 241
 242 if( $wgLangClass == $wgContLangClass ) {
 243         $wgLang = &$wgContLang;
 244 } else {
 245         wfSuppressWarnings();
 246         include_once("$IP/languages/$wgLangClass.php");
 247         wfRestoreWarnings();
 248
 249         $wgLang = setupLangObj( $wgLangClass );
 250 }
 251
 252 wfProfileOut( $fname.'-language2' );
 253 wfProfileIn( $fname.'-MessageCache' );
 254
 255 $wgMessageCache = new MessageCache;
 256 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 257
 258 wfProfileOut( $fname.'-MessageCache' );
 259
 260 #
 261 # I guess the warning about UI switching might still apply...
 262 #
 263 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 264 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 265 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 266 #
 267 # To disable it, the easiest thing could be to uncomment the
 268 # following; they should effectively disable the UI switch functionality
 269 #
 270 # $wgLangClass = $wgContLangClass;
 271 # $wgLanguageCode = $wgContLanguageCode;
 272 # $wgLang = $wgContLang;
 273 #
 274 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 275 #       places, including namespaces, dates in signatures, magic words,
 276 #       and links
 277 #
 278 # TODO: Need to look at the issue of input/output encoding
 279 #
 280
 281
 282 wfProfileIn( $fname.'-OutputPage' );
 283
 284 $wgOut = new OutputPage();
 285
 286 wfProfileOut( $fname.'-OutputPage' );
 287 wfProfileIn( $fname.'-misc2' );
 288
 289 $wgDeferredUpdateList = array();
 290 $wgPostCommitUpdateList = array();
 291
 292 $wgLinkCache = new LinkCache();
 293 $wgMagicWords = array();
 294 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 295 $wgParserCache = new ParserCache( $messageMemc );
 296
 297 if ( $wgUseXMLparser ) {
 298         require_once( 'ParserXML.php' );
 299         $wgParser = new ParserXML();
 300 } else {
 301         $wgParser = new Parser();
 302 }
 303 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 304 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 305 wfSeedRandom();
 306
 307 # Placeholders in case of DB error
 308 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 309 $wgArticle = new Article($wgTitle);
 310
 311 wfProfileOut( $fname.'-misc2' );
 312 wfProfileIn( $fname.'-extensions' );
 313
 314 # Extension setup functions for extensions other than skins
 315 # Entries should be added to this variable during the inclusion
 316 # of the extension file. This allows the extension to perform
 317 # any necessary initialisation in the fully initialised environment
 318 foreach ( $wgExtensionFunctions as $func ) {
 319         require_once 'PersistentObject.php';
 320
 321         call_user_func( $func );
 322 }
 323
 324 wfDebug( "\n" );
 325 $wgFullyInitialised = true;
 326 wfProfileOut( $fname.'-extensions' );
 327 wfProfileOut( $fname );
 328
 329 }
 330 ?>