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 } else {
  30         function wfProfileIn( $fn = '' ) {
  31                 global $hackwhere, $wgDBname;
  32                 $hackwhere[] = $fn;
  33                 if (function_exists("setproctitle"))
  34                         setproctitle($fn . " [$wgDBname]");
  35         }
  36         function wfProfileOut( $fn = '' ) {
  37                 global $hackwhere, $wgDBname;
  38                 if (count($hackwhere))
  39                         array_pop($hackwhere);
  40                 if (function_exists("setproctitle") && count($hackwhere))
  41                         setproctitle($hackwhere[count($hackwhere)-1] . " [$wgDBname]");
  42         }
  43         function wfGetProfilingOutput( $s, $e ) {}
  44         function wfProfileClose() {}
  45 }
  46
  47 $fname = 'Setup.php';
  48 wfProfileIn( $fname );
  49 wfProfileIn( $fname.'-includes' );
  50
  51 require_once( 'GlobalFunctions.php' );
  52 require_once( 'Hooks.php' );
  53 require_once( 'Namespace.php' );
  54 require_once( 'RecentChange.php' );
  55 require_once( 'User.php' );
  56 require_once( 'Skin.php' );
  57 require_once( 'OutputPage.php' );
  58 require_once( 'LinkCache.php' );
  59 require_once( 'Title.php' );
  60 require_once( 'Article.php' );
  61 require_once( 'MagicWord.php' );
  62 require_once( 'Block.php' );
  63 require_once( 'MessageCache.php' );
  64 require_once( 'BlockCache.php' );
  65 require_once( 'Parser.php' );
  66 require_once( 'ParserCache.php' );
  67 require_once( 'WebRequest.php' );
  68 require_once( 'LoadBalancer.php' );
  69 require_once( 'HistoryBlob.php' );
  70 require_once( 'ProxyTools.php' );
  71 require_once( 'ObjectCache.php' );
  72 require_once( 'WikiError.php' );
  73
  74 if ( $wgUseDynamicDates ) {
  75         require_once( 'DateFormatter.php' );
  76 }
  77
  78 wfProfileOut( $fname.'-includes' );
  79 wfProfileIn( $fname.'-misc1' );
  80
  81 $wgIP = wfGetIP();
  82 $wgRequest = new WebRequest();
  83
  84 # Useful debug output
  85 if ( $wgCommandLineMode ) {
  86         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  87 } elseif ( function_exists( 'getallheaders' ) ) {
  88         wfDebug( "\n\nStart request\n" );
  89         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  90         $headers = getallheaders();
  91         foreach ($headers as $name => $value) {
  92                 wfDebug( "$name: $value\n" );
  93         }
  94         wfDebug( "\n" );
  95 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
  96         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  97 }
  98
  99 # Disable linkscc except if the old existence check method is enabled
 100 if (!$wgUseOldExistenceCheck) {
 101         $wgEnablePersistentLC = false;
 102 }
 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         User::SetupSession();
 126         $wgSessionStarted = true;
 127 } else {
 128         $wgSessionStarted = false;
 129 }
 130
 131 wfProfileOut( $fname.'-SetupSession' );
 132 wfProfileIn( $fname.'-database' );
 133
 134 if ( !$wgDBservers ) {
 135         $wgDBservers = array(array(
 136                 'host' => $wgDBserver,
 137                 'user' => $wgDBuser,
 138                 'password' => $wgDBpassword,
 139                 'dbname' => $wgDBname,
 140                 'type' => $wgDBtype,
 141                 'load' => 1,
 142                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 143         ));
 144 }
 145 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 146 $wgLoadBalancer->loadMasterPos();
 147
 148 wfProfileOut( $fname.'-database' );
 149 wfProfileIn( $fname.'-language1' );
 150
 151 require_once( "$IP/languages/Language.php" );
 152
 153 wfProfileOut( $fname.'-language1' );
 154 wfProfileIn( $fname.'-User' );
 155
 156 # Skin setup functions
 157 # Entries can be added to this variable during the inclusion
 158 # of the extension file. Skins can then perform any necessary initialisation.
 159 foreach ( $wgSkinExtensionFunctions as $func ) {
 160         $func();
 161 }
 162
 163 if( !is_object( $wgAuth ) ) {
 164         require_once( 'AuthPlugin.php' );
 165         $wgAuth = new AuthPlugin();
 166 }
 167
 168 if( $wgCommandLineMode ) {
 169         # Used for some maintenance scripts; user session cookies can screw things up
 170         # when the database is in an in-between state.
 171         $wgUser = new User();
 172         # Prevent loading User settings from the DB.
 173         $wgUser->setLoaded( true );
 174 } else {
 175         $wgUser = User::loadFromSession();
 176 }
 177
 178 wfProfileOut( $fname.'-User' );
 179 wfProfileIn( $fname.'-language2' );
 180
 181 function setupLangObj(&$langclass) {
 182         global $IP;
 183
 184         if( ! class_exists( $langclass ) ) {
 185                 # Default to English/UTF-8
 186                 $baseclass = 'LanguageUtf8';
 187                 require_once( "$IP/languages/$baseclass.php" );
 188                 $lc = strtolower(substr($langclass, 8));
 189                 $snip = "
 190                         class $langclass extends $baseclass {
 191                                 function getVariants() {
 192                                         return array(\"$lc\");
 193                                 }
 194
 195                         }";
 196                 eval($snip);
 197         }
 198
 199         $lang = new $langclass();
 200
 201         return $lang;
 202 }
 203
 204 # $wgLanguageCode may be changed later to fit with user preference.
 205 # The content language will remain fixed as per the configuration,
 206 # so let's keep it.
 207 $wgContLanguageCode = $wgLanguageCode;
 208 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 209
 210 $wgContLang = setupLangObj( $wgContLangClass );
 211 $wgContLang->initEncoding();
 212
 213 // set default user option from content language
 214 if( !$wgUser->mDataLoaded ) {
 215         $wgUser->loadDefaultFromLanguage();
 216 }
 217
 218 // wgLanguageCode now specifically means the UI language
 219 $wgLanguageCode = $wgUser->getOption('language');
 220 # Validate $wgLanguageCode, which will soon be sent to an eval()
 221 if( empty( $wgLanguageCode ) || preg_match( '/^[^a-z-]*$/', $wgLanguageCode ) ) {
 222         $wgLanguageCode = $wgContLanguageCode;
 223 }
 224
 225 $wgLangClass = 'Language'. str_replace( '-', '_', ucfirst( $wgLanguageCode ) );
 226
 227 if( $wgLangClass == $wgContLangClass ) {
 228         $wgLang = &$wgContLang;
 229 } else {
 230         wfSuppressWarnings();
 231         include_once("$IP/languages/$wgLangClass.php");
 232         wfRestoreWarnings();
 233
 234         $wgLang = setupLangObj( $wgLangClass );
 235 }
 236
 237 wfProfileOut( $fname.'-language' );
 238 wfProfileIn( $fname.'-MessageCache' );
 239
 240 $wgMessageCache = new MessageCache;
 241 $wgMessageCache->initialise( $parserMemc, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname);
 242
 243 wfProfileOut( $fname.'-MessageCache' );
 244
 245 #
 246 # I guess the warning about UI switching might still apply...
 247 #
 248 # FIXME: THE ABOVE MIGHT BREAK NAMESPACES, VARIABLES,
 249 # SEARCH INDEX UPDATES, AND MANY MANY THINGS.
 250 # DO NOT USE THIS MODE EXCEPT FOR TESTING RIGHT NOW.
 251 #
 252 # To disable it, the easiest thing could be to uncomment the
 253 # following; they should effectively disable the UI switch functionality
 254 #
 255 # $wgLangClass = $wgContLangClass;
 256 # $wgLanguageCode = $wgContLanguageCode;
 257 # $wgLang = $wgContLang;
 258 #
 259 # TODO: Need to change reference to $wgLang to $wgContLang at proper
 260 #       places, including namespaces, dates in signatures, magic words,
 261 #       and links
 262 #
 263 # TODO: Need to look at the issue of input/output encoding
 264 #
 265
 266
 267 wfProfileIn( $fname.'-OutputPage' );
 268
 269 $wgOut = new OutputPage();
 270
 271 wfProfileOut( $fname.'-OutputPage' );
 272 wfProfileIn( $fname.'-BlockCache' );
 273
 274 $wgBlockCache = new BlockCache( true );
 275
 276 wfProfileOut( $fname.'-BlockCache' );
 277 wfProfileIn( $fname.'-misc2' );
 278
 279 $wgDeferredUpdateList = array();
 280 $wgPostCommitUpdateList = array();
 281
 282 $wgLinkCache = new LinkCache();
 283 $wgMagicWords = array();
 284 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 285 $wgParserCache = new ParserCache( $messageMemc );
 286
 287 if ( $wgUseXMLparser ) {
 288         require_once( 'ParserXML.php' );
 289         $wgParser = new ParserXML();
 290 } else {
 291         $wgParser = new Parser();
 292 }
 293 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 294 $wgMsgParserOptions = ParserOptions::newFromUser($wgUser);
 295 wfSeedRandom();
 296
 297 # Placeholders in case of DB error
 298 $wgTitle = Title::makeTitle( NS_SPECIAL, 'Error' );
 299 $wgArticle = new Article($wgTitle);
 300
 301 wfProfileOut( $fname.'-misc2' );
 302 wfProfileIn( $fname.'-extensions' );
 303
 304 # Extension setup functions for extensions other than skins
 305 # Entries should be added to this variable during the inclusion
 306 # of the extension file. This allows the extension to perform
 307 # any necessary initialisation in the fully initialised environment
 308 foreach ( $wgExtensionFunctions as $func ) {
 309         $func();
 310 }
 311
 312 wfDebug( "\n" );
 313 $wgFullyInitialised = true;
 314 wfProfileOut( $fname.'-extensions' );
 315 wfProfileOut( $fname );
 316
 317 }
 318 ?>