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