inc/libs/online_functions.php

   1 <?php
   2 /************************************************************************
   3  * MXChange v0.2.1                                    Start: 12/18/2008 *
   4  * ================                             Last change: 12/18/2008 *
   5  *                                                                      *
   6  * -------------------------------------------------------------------- *
   7  * File              : online_functions.php                             *
   8  * -------------------------------------------------------------------- *
   9  * Short description : Online functions                                 *
  10  * -------------------------------------------------------------------- *
  11  * Kurzbeschreibung  : Online-Funktionen                                *
  12  * -------------------------------------------------------------------- *
  13  *                                                                      *
  14  * -------------------------------------------------------------------- *
  15  * Copyright (c) 2003 - 2008 by Roland Haeder                           *
  16  * For more information visit: http://www.mxchange.org                  *
  17  *                                                                      *
  18  * This program is free software; you can redistribute it and/or modify *
  19  * it under the terms of the GNU General Public License as published by *
  20  * the Free Software Foundation; either version 2 of the License, or    *
  21  * (at your option) any later version.                                  *
  22  *                                                                      *
  23  * This program is distributed in the hope that it will be useful,      *
  24  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
  26  * GNU General Public License for more details.                         *
  27  *                                                                      *
  28  * You should have received a copy of the GNU General Public License    *
  29  * along with this program; if not, write to the Free Software          *
  30  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,               *
  31  * MA  02110-1301  USA                                                  *
  32  ************************************************************************/
  33
  34 // Some security stuff...
  35 if (!defined('__SECURITY')) {
  36         $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
  37         require($INC);
  38 }
  39
  40 // Filter for updates/extends on the online list
  41 function FILTER_UPDATE_ONLINE_LIST () {
  42         global $PHPSESSID;
  43
  44         // Do not update online list when extension is deactivated
  45         if (!EXT_IS_ACTIVE("online", true)) return;
  46
  47         // Empty session?
  48         if (empty($PHPSESSID)) {
  49                 // This is invalid here!
  50                 print "Invalid session. Backtrace:<pre>";
  51                 debug_print_backtrace();
  52                 die("</pre>");
  53         } // END - if
  54
  55         // Initialize variables
  56         $uid = 0; $rid = 0; $MEM = "N"; $ADMIN = "N";
  57
  58         // Valid userid?
  59         if ((!empty($GLOBALS['userid'])) && ($GLOBALS['userid'] > 0) && (IS_MEMBER())) {
  60                 // Is valid user
  61                 $uid = bigintval($GLOBALS['userid']);
  62                 $MEM = "Y";
  63         } // END - if
  64
  65         if (IS_ADMIN()) {
  66                 // Is administrator
  67                 $ADMIN = "Y";
  68         } // END - if
  69
  70         if (!empty($GLOBALS['refid'])) {
  71                 // Read cookie
  72                 $rid = bigintval($GLOBALS['refid']);
  73         } // END - if
  74
  75         // Now search for the user
  76         $result = SQL_QUERY_ESC("SELECT timestamp FROM `{!_MYSQL_PREFIX!}_online` WHERE sid='%s' LIMIT 1",
  77                 array($PHPSESSID), __FILE__, __LINE__);
  78
  79         // Entry found?
  80         if (SQL_NUMROWS($result) == 1) {
  81                 // Then update it
  82                 SQL_QUERY_ESC("UPDATE `{!_MYSQL_PREFIX!}_online` SET
  83 module='%s',
  84 action='%s',
  85 what='%s',
  86 userid=%s,
  87 refid=%s,
  88 is_member='%s',
  89 is_admin='%s',
  90 timestamp=UNIX_TIMESTAMP(),
  91 ip='%s'
  92 WHERE sid='%s' LIMIT 1",
  93                         array(
  94                                 $GLOBALS['module'],
  95                                 $GLOBALS['action'],
  96                                 $GLOBALS['what'],
  97                                 $uid,
  98                                 $rid,
  99                                 $MEM,
 100                                 $ADMIN,
 101                                 GET_REMOTE_ADDR(),
 102                                 $PHPSESSID
 103                         ), __FILE__, __LINE__
 104                 );
 105         } else {
 106                 // No entry does exists so we simply add it!
 107                 SQL_QUERY_ESC("INSERT INTO `{!_MYSQL_PREFIX!}_online` (module, action, what, userid, refid, is_member, is_admin, timestamp, sid, ip) VALUES ('%s','%s','%s', %s, %s, '%s','%s', UNIX_TIMESTAMP(), '%s','%s')",
 108                         array(
 109                                 $GLOBALS['module'],
 110                                 $GLOBALS['action'],
 111                                 $GLOBALS['what'],
 112                                 $uid,
 113                                 $rid,
 114                                 $MEM,
 115                                 $ADMIN,
 116                                 $PHPSESSID,
 117                                 GET_REMOTE_ADDR()
 118                         ), __FILE__, __LINE__
 119                 );
 120         }
 121
 122         // Free result
 123         SQL_FREERESULT($result);
 124
 125         // Purge old entries
 126         SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM `{!_MYSQL_PREFIX!}_online` WHERE timestamp <= (UNIX_TIMESTAMP() - %s)",
 127                 array(getConfig('online_timeout')), __FILE__, __LINE__);
 128 }
 129
 130 //
 131 ?>