includes/Setup.php

   1 <?php
   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 $wgIP = getenv("REMOTE_ADDR");
  24 if( $wgUseSquid && isset( $_SERVER["HTTP_X_FORWARDED_FOR"] ) ) {
  25         # If the web server is behind a reverse proxy, we need to find
  26         # out where our requests are really coming from.
  27         $wgIP = trim( preg_replace( "/^(.*, )?([^,]+)$/", "$2",
  28                 $_SERVER['HTTP_X_FORWARDED_FOR'] ) );
  29 }
  30
  31 $fname = "Setup.php";
  32 wfProfileIn( $fname );
  33 global $wgUseDynamicDates;
  34 wfProfileIn( "$fname-includes" );
  35
  36 include_once( "GlobalFunctions.php" );
  37 include_once( "Namespace.php" );
  38 include_once( "RecentChange.php" );
  39 include_once( "Skin.php" );
  40 include_once( "OutputPage.php" );
  41 include_once( "User.php" );
  42 include_once( "LinkCache.php" );
  43 include_once( "Title.php" );
  44 include_once( "Article.php" );
  45 include_once( "MagicWord.php" );
  46 include_once( "memcached-client.php" );
  47 include_once( "Block.php" );
  48 include_once( "SearchEngine.php" );
  49 include_once( "DifferenceEngine.php" );
  50 include_once( "MessageCache.php" );
  51 include_once( "BlockCache.php" );
  52 include_once( "Parser.php" );
  53 include_once( "ParserCache.php" );
  54 include_once( "WebRequest.php" );
  55 $wgRequest = new WebRequest();
  56
  57
  58 wfProfileOut( "$fname-includes" );
  59 wfProfileIn( "$fname-memcached" );
  60 global $wgUser, $wgLang, $wgOut, $wgTitle;
  61 global $wgArticle, $wgDeferredUpdateList, $wgLinkCache;
  62 global $wgMemc, $wgMagicWords, $wgMwRedir, $wgDebugLogFile;
  63 global $wgMessageCache, $wgUseMemCached, $wgUseDatabaseMessages;
  64 global $wgMsgCacheExpiry, $wgDBname, $wgCommandLineMode;
  65 global $wgBlockCache, $wgParserCache, $wgParser;
  66
  67 # Useful debug output
  68 if ( function_exists( "getallheaders" ) ) {
  69         wfDebug( "\nStart request\n" );
  70         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  71         $headers = getallheaders();
  72         foreach ($headers as $name => $value) {
  73                 wfDebug( "$name: $value\n" );
  74         }
  75         wfDebug( "\n" );
  76 } else {
  77         wfDebug( $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . "\n" );
  78 }
  79
  80 # Set up Memcached
  81 #
  82 class MemCachedClientforWiki extends memcached {
  83         function _debugprint( $text ) {
  84                 wfDebug( "memcached: $text\n" );
  85         }
  86 }
  87
  88 # FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
  89 # It acts as a memcached server with no RAM, that is, all objects are
  90 # cleared the moment they are set. All set operations succeed and all
  91 # get operations return null.
  92
  93 class FakeMemCachedClient {
  94         function add ($key, $val, $exp = 0) { return true; }
  95         function decr ($key, $amt=1) { return null; }
  96         function delete ($key, $time = 0) { return false; }
  97         function disconnect_all () { }
  98         function enable_compress ($enable) { }
  99         function forget_dead_hosts () { }
 100         function get ($key) { return null; }
 101         function get_multi ($keys) { return array_pad(array(), count($keys), null); }
 102         function incr ($key, $amt=1) { return null; }
 103         function replace ($key, $value, $exp=0) { return false; }
 104         function run_command ($sock, $cmd) { return null; }
 105         function set ($key, $value, $exp=0){ return true; }
 106         function set_compress_threshold ($thresh){ }
 107         function set_debug ($dbg) { }
 108         function set_servers ($list) { }
 109 }
 110
 111 if( $wgUseMemCached ) {
 112         $wgMemc = new MemCachedClientforWiki( array('persistant' => true) );
 113         $wgMemc->set_servers( $wgMemCachedServers );
 114         $wgMemc->set_debug( $wgMemCachedDebug );
 115
 116         # Test it to see if it's working
 117         # This is necessary because otherwise wfMsg would be extremely inefficient
 118         if ( !$wgMemc->set( "test", "", 0 ) ) {
 119                 wfDebug( "Memcached failed setup test - connection error?\n" );
 120                 $wgUseMemCached = false;
 121                 $wgMemc = new FakeMemCachedClient();
 122         }
 123 } else {
 124         $wgMemc = new FakeMemCachedClient();
 125 }
 126
 127 wfProfileOut( "$fname-memcached" );
 128 wfProfileIn( "$fname-misc" );
 129
 130 include_once( "Language.php" );
 131
 132 $wgMessageCache = new MessageCache;
 133
 134 $wgLangClass = "Language" . ucfirst( $wgLanguageCode );
 135 if( ! class_exists( $wgLangClass ) ) {
 136         include_once( "LanguageUtf8.php" );
 137         $wgLangClass = "LanguageUtf8";
 138 }
 139
 140 $wgLang = new $wgLangClass();
 141 if ( !is_object($wgLang) ) {
 142         print "No language class ($wgLang)\N";
 143 }
 144 $wgMessageCache->initialise( $wgUseMemCached, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgDBname );
 145
 146 $wgOut = new OutputPage();
 147 wfDebug( "\n\n" );
 148
 149 if ( $wgUseDynamicDates ) {
 150         include_once( "DateFormatter.php" );
 151         global $wgDateFormatter;
 152         $wgDateFormatter = new DateFormatter;
 153 }
 154
 155 if( !$wgCommandLineMode && isset( $_COOKIE[ini_get("session.name")] )  ) {
 156         User::SetupSession();
 157 }
 158
 159 $wgBlockCache = new BlockCache( true );
 160 $wgUser = User::loadFromSession();
 161 $wgDeferredUpdateList = array();
 162 $wgLinkCache = new LinkCache();
 163 $wgMagicWords = array();
 164 $wgMwRedir =& MagicWord::get( MAG_REDIRECT );
 165 $wgParserCache = new ParserCache();
 166 $wgParser = new Parser();
 167 $wgOut->setParserOptions( ParserOptions::newFromUser( $wgUser ) );
 168
 169 wfProfileOut( "$fname-misc" );
 170 wfProfileOut( $fname );
 171
 172 ?>