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 $fname = "Setup.php";
  21 wfProfileIn( $fname );
  22 global $wgUseDynamicDates;
  23 wfProfileIn( "$fname-includes" );
  24
  25 include_once( "GlobalFunctions.php" );
  26 include_once( "Namespace.php" );
  27 include_once( "RecentChange.php" );
  28 include_once( "Skin.php" );
  29 include_once( "OutputPage.php" );
  30 include_once( "User.php" );
  31 include_once( "LinkCache.php" );
  32 include_once( "Title.php" );
  33 include_once( "Article.php" );
  34 include_once( "MagicWord.php" );
  35 include_once( "memcached-client.php" );
  36 include_once( "Block.php" );
  37 include_once( "SearchEngine.php" );
  38 include_once( "DifferenceEngine.php" );
  39 include_once( "MessageCache.php" );
  40
  41 wfProfileOut( "$fname-includes" );
  42 wfProfileIn( "$fname-memcached" );
  43 global $wgUser, $wgLang, $wgOut, $wgTitle;
  44 global $wgArticle, $wgDeferredUpdateList, $wgLinkCache;
  45 global $wgMemc, $wgMagicWords, $wgMwRedir, $wgDebugLogFile;
  46 global $wgMessageCache, $wgUseMemCached, $wgUseDatabaseMessages;
  47 global $wgMsgCacheExpiry, $wgDBname, $wgCommandLineMode;
  48
  49 class MemCachedClientforWiki extends memcached {
  50         function _debugprint( $text ) {
  51                 wfDebug( "memcached: $text\n" );
  52         }
  53 }
  54
  55 # FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
  56 # It acts as a memcached server with no RAM, that is, all objects are
  57 # cleared the moment they are set. All set operations succeed and all
  58 # get operations return null.
  59
  60 class FakeMemCachedClient {
  61         function add ($key, $val, $exp = 0) { return true; }
  62         function decr ($key, $amt=1) { return null; }
  63         function delete ($key, $time = 0) { return false; }
  64         function disconnect_all () { }
  65         function enable_compress ($enable) { }
  66         function forget_dead_hosts () { }
  67         function get ($key) { return null; }
  68         function get_multi ($keys) { return array_pad(array(), count($keys), null); }
  69         function incr ($key, $amt=1) { return null; }
  70         function replace ($key, $value, $exp=0) { return false; }
  71         function run_command ($sock, $cmd) { return null; }
  72         function set ($key, $value, $exp=0){ return true; }
  73         function set_compress_threshold ($thresh){ }
  74         function set_debug ($dbg) { }
  75         function set_servers ($list) { }
  76 }
  77
  78 if( $wgUseMemCached ) {
  79         $wgMemc = new MemCachedClientforWiki( array('persistant' => true) );
  80         $wgMemc->set_servers( $wgMemCachedServers );
  81         $wgMemc->set_debug( $wgMemCachedDebug );
  82
  83         # Test it to see if it's working
  84         # This is necessary because otherwise wfMsg would be extremely inefficient
  85         if ( !$wgMemc->set( "test", "", 0 ) ) {
  86                 wfDebug( "Memcached failed setup test - connection error?\n" );
  87                 $wgUseMemCached = false;
  88                 $wgMemc = new FakeMemCachedClient();
  89         }
  90 } else {
  91         $wgMemc = new FakeMemCachedClient();
  92 }
  93
  94 wfProfileOut( "$fname-memcached" );
  95 wfProfileIn( "$fname-misc" );
  96
  97 include_once( "Language.php" );
  98
  99 $wgMessageCache = new MessageCache;
 100
 101 $wgOut = new OutputPage();
 102 wfDebug( "\n\n" );
 103
 104 $wgLangClass = "Language" . ucfirst( $wgLanguageCode );
 105 if( ! class_exists( $wgLangClass ) ) {
 106         include_once( "LanguageUtf8.php" );
 107         $wgLangClass = "LanguageUtf8";
 108 }
 109
 110 $wgLang = new $wgLangClass();
 111 if ( !is_object($wgLang) ) {
 112         print "No language class ($wgLang)\N";
 113 }
 114 $wgMessageCache->initialise( $wgUseMemCached, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname );
 115
 116 if ( $wgUseDynamicDates ) {
 117         include_once( "DateFormatter.php" );
 118         global $wgDateFormatter;
 119         $wgDateFormatter = new DateFormatter;
 120 }
 121
 122 if( !$wgCommandLineMode ) {
 123         if( $wgSessionsInMemcached ) {
 124                 include_once( "MemcachedSessions.php" );
 125         }
 126         session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain );
 127         session_cache_limiter( "private, must-revalidate" );
 128         session_start();
 129         session_register( "wsUserID" );
 130         session_register( "wsUserName" );
 131         session_register( "wsUserPassword" );
 132         session_register( "wsUploadFiles" );
 133 }
 134
 135 $wgUser = User::loadFromSession();
 136 $wgDeferredUpdateList = array();
 137 $wgLinkCache = new LinkCache();
 138 $wgMagicWords = array();
 139 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 140
 141 wfProfileOut( "$fname-misc" );
 142 wfProfileOut( $fname );
 143
 144 ?>