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         function wfLogProfilingData() {}
  46 }
  47
  48 $fname = 'Setup.php';
  49 wfProfileIn( $fname );
  50 wfProfileIn( $fname.'-includes' );
  51
  52 require_once( 'GlobalFunctions.php' );
  53 require_once( 'Hooks.php' );
  54 require_once( 'Namespace.php' );
  55 require_once( 'RecentChange.php' );
  56 require_once( 'User.php' );
  57 require_once( 'Skin.php' );
  58 require_once( 'OutputPage.php' );
  59 require_once( 'LinkCache.php' );
  60 require_once( 'Title.php' );
  61 require_once( 'Article.php' );
  62 require_once( 'MagicWord.php' );
  63 require_once( 'Block.php' );
  64 require_once( 'MessageCache.php' );
  65 require_once( 'BlockCache.php' );
  66 require_once( 'Parser.php' );
  67 require_once( 'ParserCache.php' );
  68 require_once( 'WebRequest.php' );
  69 require_once( 'LoadBalancer.php' );
  70 require_once( 'HistoryBlob.php' );
  71 require_once( 'ProxyTools.php' );
  72 require_once( 'ObjectCache.php' );
  73 require_once( 'WikiError.php' );
  74 require_once( 'SpecialPage.php' );
  75
  76 if ( $wgUseDynamicDates ) {
  77         require_once( 'DateFormatter.php' );
  78 }
  79
  80 wfProfileOut( $fname.'-includes' );
  81 wfProfileIn( $fname.'-misc1' );
  82
  83 $wgIP = wfGetIP();
  84 $wgRequest = new WebRequest();
  85
  86 # Useful debug output
  87 if ( $wgCommandLineMode ) {
  88         # wfDebug( '"' . implode( '"  "', $argv ) . '"' );
  89 } elseif ( function_exists( 'getallheaders' ) ) {
  90         wfDebug( "\n\nStart request\n" );
  91         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  92         $headers = getallheaders();
  93         foreach ($headers as $name => $value) {
  94                 wfDebug( "$name: $value\n" );
  95         }
  96         wfDebug( "\n" );
  97 } elseif( isset( $_SERVER['REQUEST_URI'] ) ) {
  98         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  99 }
 100
 101 if ( $wgSkipSkin ) {
 102         $wgSkipSkins[] = $wgSkipSkin;
 103 }
 104
 105 $wgUseEnotif = $wgEnotifUserTalk || $wgEnotifWatchlist;
 106
 107 wfProfileOut( $fname.'-misc1' );
 108 wfProfileIn( $fname.'-memcached' );
 109
 110 $wgMemc =& wfGetMainCache();
 111 $messageMemc =& wfGetMessageCacheStorage();
 112 $parserMemc =& wfGetParserCacheStorage();
 113
 114 wfDebug( 'Main cache: ' . get_class( $wgMemc ) .
 115        "\nMessage cache: " . get_class( $messageMemc ) .
 116            "\nParser cache: " . get_class( $parserMemc ) . "\n" );
 117
 118 wfProfileOut( $fname.'-memcached' );
 119 wfProfileIn( $fname.'-SetupSession' );
 120
 121 if ( $wgDBprefix ) {
 122         session_name( $wgDBname . '_' . $wgDBprefix . '_session' );
 123 } else {
 124         session_name( $wgDBname . '_session' );
 125 }
 126
 127 if( !$wgCommandLineMode && ( isset( $_COOKIE[session_name()] ) || isset( $_COOKIE[$wgDBname.'Token'] ) ) ) {
 128         User::SetupSession();
 129         $wgSessionStarted = true;
 130 } else {
 131         $wgSessionStarted = false;
 132 }
 133
 134 wfProfileOut( $fname.'-SetupSession' );
 135 wfProfileIn( $fname.'-database' );
 136
 137 if ( !$wgDBservers ) {
 138         $wgDBservers = array(array(
 139                 'host' => $wgDBserver,
 140                 'user' => $wgDBuser,
 141                 'password' => $wgDBpassword,
 142                 'dbname' => $wgDBname,
 143                 'type' => $wgDBtype,
 144                 'load' => 1,
 145                 'flags' => ($wgDebugDumpSql ? DBO_DEBUG : 0) | DBO_DEFAULT
 146         ));
 147 }
 148 $wgLoadBalancer = LoadBalancer::newFromParams( $wgDBservers, false, $wgMasterWaitTimeout );
 149 $wgLoadBalancer->loadMasterPos();
 150
 151 wfProfileOut( $fname.'-database' );
 152 wfProfileIn( $fname.'-language1' );
 153
 154 require_once( "$IP/languages/Language.php" );
 155
 156 function setupLangObj($langclass) {
 157         global $IP;
 158
 159         if( ! class_exists( $langclass ) ) {
 160                 # Default to English/UTF-8
 161                 $baseclass = 'LanguageUtf8';
 162                 require_once( "$IP/languages/$baseclass.php" );
 163                 $lc = strtolower(substr($langclass, 8));
 164                 $snip = "
 165                         class $langclass extends $baseclass {
 166                                 function getVariants() {
 167                                         return array(\"$lc\");
 168                                 }
 169
 170                         }";
 171                 eval($snip);
 172         }
 173
 174         $lang = new $langclass();
 175
 176         return $lang;
 177 }
 178
 179 # $wgLanguageCode may be changed later to fit with user preference.
 180 # The content language will remain fixed as per the configuration,
 181 # so let's keep it.
 182 $wgContLanguageCode = $wgLanguageCode;
 183 $wgContLangClass = 'Language' . str_replace( '-', '_', ucfirst( $wgContLanguageCode ) );
 184
 185 $wgContLang = setupLangObj( $wgContLangClass );
 186 $wgContLang->initEncoding();
 187
 188 wfProfileOut( $fname.'-language1' );
 189 wfProfileIn( $fname.'-User' );
 190
 191 # Skin setup functions
 192 # Entries can be added to this variable during the inclusion
 193 # of the extension file. Skins can then perform any necessary initialisation.
 194 foreach ( $wgSkinExtensionFunctions as $func ) {
 195         $func();
 196 }
 197
 198 if( !is_object( $wgAuth ) ) {
 199         require_once( 'AuthPlugin.php' );
 200         $wgAuth = new AuthPlugin();
 201 }
 202
 203 if( $wgCommandLineMode ) {
 204         # Used for some maintenance scripts; user session cookies can screw things up
 205         # when the database is in an in-between state.
 206         $wgUser = new User();
 207         # Prevent loading User settings from the DB.
 208         $wgUser->setLoaded( true );
 209 } else {
 210         $wgUser = User::loadFromSession();
 211 }
 212
 213 wfProfileOut( $fname.'-User' );
 214 wfProfileIn( $fname.'-language2' );
 215
 216 // wgLanguageCode now specifically means the UI language
 217 $wgLanguageCode = $wgRequest->getText('uselang', '');
 218 if ($wgLanguageCode == '')
 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.'-language2' );
 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 ?>