includes/Setup.php

   1 <?
   2 # The main wiki script and things like database
   3 # conversion and maintenance scripts all share a
   4 # common setup of including lots of classes and
   5 # setting up a few globals.
   6 #
   7
   8 if( !isset( $wgProfiling ) )
   9         $wgProfiling = false;
  10
  11 if ( $wgProfiling and (0 == rand() % $wgProfileSampleRate ) ) {
  12         include_once( "Profiling.php" );
  13 } else {
  14         function wfProfileIn( $fn ) {}
  15         function wfProfileOut( $fn = "" ) {}
  16         function wfGetProfilingOutput( $s, $e ) {}
  17         function wfProfileClose() {}
  18 }
  19
  20
  21
  22 /* collect the originating ips */
  23 if ($_SERVER["HTTP_X_FORWARDED_FOR"]) {
  24   $wgIP = trim(preg_replace("/^(.*, )?([^,]+)$/", "$2",
  25                         $_SERVER['HTTP_X_FORWARDED_FOR']));
  26 } else {
  27   $wgIP = getenv("REMOTE_ADDR");
  28 }
  29
  30 $fname = "Setup.php";
  31 wfProfileIn( $fname );
  32 global $wgUseDynamicDates;
  33 wfProfileIn( "$fname-includes" );
  34
  35 include_once( "GlobalFunctions.php" );
  36 include_once( "Namespace.php" );
  37 include_once( "RecentChange.php" );
  38 include_once( "Skin.php" );
  39 include_once( "OutputPage.php" );
  40 include_once( "User.php" );
  41 include_once( "LinkCache.php" );
  42 include_once( "Title.php" );
  43 include_once( "Article.php" );
  44 include_once( "MagicWord.php" );
  45 include_once( "memcached-client.php" );
  46 include_once( "Block.php" );
  47 include_once( "SearchEngine.php" );
  48 include_once( "DifferenceEngine.php" );
  49 include_once( "MessageCache.php" );
  50
  51 wfProfileOut( "$fname-includes" );
  52 wfProfileIn( "$fname-memcached" );
  53 global $wgUser, $wgLang, $wgOut, $wgTitle;
  54 global $wgArticle, $wgDeferredUpdateList, $wgLinkCache;
  55 global $wgMemc, $wgMagicWords, $wgMwRedir, $wgDebugLogFile;
  56 global $wgMessageCache, $wgUseMemCached, $wgUseDatabaseMessages;
  57 global $wgMsgCacheExpiry, $wgDBname, $wgCommandLineMode;
  58
  59 class MemCachedClientforWiki extends memcached {
  60         function _debugprint( $text ) {
  61                 wfDebug( "memcached: $text\n" );
  62         }
  63 }
  64
  65 # FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
  66 # It acts as a memcached server with no RAM, that is, all objects are
  67 # cleared the moment they are set. All set operations succeed and all
  68 # get operations return null.
  69
  70 class FakeMemCachedClient {
  71         function add ($key, $val, $exp = 0) { return true; }
  72         function decr ($key, $amt=1) { return null; }
  73         function delete ($key, $time = 0) { return false; }
  74         function disconnect_all () { }
  75         function enable_compress ($enable) { }
  76         function forget_dead_hosts () { }
  77         function get ($key) { return null; }
  78         function get_multi ($keys) { return array_pad(array(), count($keys), null); }
  79         function incr ($key, $amt=1) { return null; }
  80         function replace ($key, $value, $exp=0) { return false; }
  81         function run_command ($sock, $cmd) { return null; }
  82         function set ($key, $value, $exp=0){ return true; }
  83         function set_compress_threshold ($thresh){ }
  84         function set_debug ($dbg) { }
  85         function set_servers ($list) { }
  86 }
  87
  88 if( $wgUseMemCached ) {
  89         $wgMemc = new MemCachedClientforWiki( array('persistant' => true) );
  90         $wgMemc->set_servers( $wgMemCachedServers );
  91         $wgMemc->set_debug( $wgMemCachedDebug );
  92
  93         # Test it to see if it's working
  94         # This is necessary because otherwise wfMsg would be extremely inefficient
  95         if ( !$wgMemc->set( "test", "", 0 ) ) {
  96                 wfDebug( "Memcached failed setup test - connection error?\n" );
  97                 $wgUseMemCached = false;
  98                 $wgMemc = new FakeMemCachedClient();
  99         }
 100 } else {
 101         $wgMemc = new FakeMemCachedClient();
 102 }
 103
 104 wfProfileOut( "$fname-memcached" );
 105 wfProfileIn( "$fname-misc" );
 106
 107 include_once( "Language.php" );
 108
 109 $wgMessageCache = new MessageCache;
 110
 111 $wgOut = new OutputPage();
 112 wfDebug( "\n\n" );
 113
 114 $wgLangClass = "Language" . ucfirst( $wgLanguageCode );
 115 if( ! class_exists( $wgLangClass ) ) {
 116         include_once( "LanguageUtf8.php" );
 117         $wgLangClass = "LanguageUtf8";
 118 }
 119
 120 $wgLang = new $wgLangClass();
 121 if ( !is_object($wgLang) ) {
 122         print "No language class ($wgLang)\N";
 123 }
 124 $wgMessageCache->initialise( $wgUseMemCached, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname );
 125
 126 if ( $wgUseDynamicDates ) {
 127         include_once( "DateFormatter.php" );
 128         global $wgDateFormatter;
 129         $wgDateFormatter = new DateFormatter;
 130 }
 131
 132 if( !$wgCommandLineMode && isset( $_COOKIE[ini_get("session.name")] )  ) {
 133         User::SetupSession();
 134 }
 135
 136 $wgUser = User::loadFromSession();
 137 $wgDeferredUpdateList = array();
 138 $wgLinkCache = new LinkCache();
 139 $wgMagicWords = array();
 140 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 141
 142 wfProfileOut( "$fname-misc" );
 143 wfProfileOut( $fname );
 144
 145 ?>