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Moved all included files to includes
git-svn-id: file:///svn/phpbb/trunk@182 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Paul S. Owen
357
phpBB/includes/sessions.php
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357
phpBB/includes/sessions.php
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<?php
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/***************************************************************************
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* sessions.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*
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***************************************************************************/
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//
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// session_begin()
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//
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// Adds/updates a new session to the database for the given userid.
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// Returns the new session ID on success.
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//
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function session_begin($user_id, $user_ip, $page_id, $session_length, $login = 0, $password = "")
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{
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global $db;
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global $cookiename, $cookiedomain, $cookiepath, $cookiesecure, $cookielife;
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global $HTTP_COOKIE_VARS;
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$current_time = time();
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$expiry_time = $current_time - $session_length;
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$int_ip = encode_ip($user_ip);
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//
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// Initial ban check against IP and userid
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//
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$sql = "SELECT ban_ip, ban_userid
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FROM ".BANLIST_TABLE."
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WHERE (ban_ip = '$int_ip' OR ban_userid = '$user_id')
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AND (ban_start < $current_time AND ban_end > $current_time )";
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$result = $db->sql_query($sql);
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if (!$result)
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{
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error_die(SQL_QUERY, "Couldn't obtain ban information.", __LINE__, __FILE__);
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}
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$ban_info = $db->sql_fetchrow($result);
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//
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// Check for user and ip ban ...
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//
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if($ban_info['ban_ip'] || $ban_info['ban_userid'])
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{
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error_die(AUTH_BANNED);
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}
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else
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{
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if($user_id == ANONYMOUS)
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{
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$login = 0;
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}
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$sql_update = "UPDATE ".SESSIONS_TABLE."
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SET session_user_id = $user_id, session_time = $current_time, session_page = $page_id, session_logged_in = $login
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WHERE (session_id = ".$HTTP_COOKIE_VARS[$cookiename]['sessionid'].")
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AND (session_ip = '$int_ip')";
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$result = $db->sql_query($sql_update);
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if(!$result || !$db->sql_affectedrows())
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{
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mt_srand( (double) microtime() * 1000000);
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$session_id = mt_rand();
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$sql_insert = "INSERT INTO ".SESSIONS_TABLE."
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(session_id, session_user_id, session_time, session_ip, session_page, session_logged_in)
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VALUES
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($session_id, $user_id, $current_time, '$int_ip', $page_id, $login)";
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$result = $db->sql_query($sql_insert);
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if(!$result)
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{
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if(DEBUG)
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{
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error_die(SQL_QUERY, "Error creating new session : session_begin", __LINE__, __FILE__);
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}
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else
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{
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error_die(SESSION_CREATE);
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}
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}
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setcookie($cookiename."[sessionid]", $session_id, $session_length, $cookiepath, $cookiedomain, $cookiesecure);
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}
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else
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{
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$session_id = $HTTP_COOKIE_VARS[$cookiename]['sessionid'];
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}
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if(!empty($password) && AUTOLOGON)
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{
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setcookie($cookiename."[useridref]", $password, $cookielife, $cookiepath, $cookiedomain, $cookiesecure);
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}
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setcookie($cookiename."[userid]", $user_id, $cookielife, $cookiepath, $cookiedomain, $cookiesecure);
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setcookie($cookiename."[sessionstart]", $current_time, $cookielife, $cookiepath, $cookiedomain, $cookiesecure);
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setcookie($cookiename."[sessiontime]", $current_time, $session_length, $cookiepath, $cookiedomain, $cookiesecure);
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// echo $sql_update."<BR><BR>".$sql_insert."<BR><BR>";
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}
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return $session_id;
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} // session_begin
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//
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// Checks for a given user session, tidies session
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// table and updates user sessions at each page refresh
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//
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function session_pagestart($user_ip, $thispage_id, $session_length)
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{
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global $db;
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global $cookiename, $cookiedomain, $cookiepath, $cookiesecure, $cookielife;
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global $HTTP_COOKIE_VARS;
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unset($userdata);
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$current_time = time();
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$int_ip = encode_ip($user_ip);
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//
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// Delete expired sessions
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//
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$expiry_time = $current_time - $session_length;
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$sql = "DELETE FROM ".SESSIONS_TABLE."
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WHERE session_time < $expiry_time";
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$result = $db->sql_query($sql);
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if(!$result)
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{
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if(DEBUG)
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{
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error_die(SQL_QUERY, "Error clearing sessions table : session_pagestart", __LINE__, __FILE__);
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}
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else
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{
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error_die(SESSION_CREATE);
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}
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}
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if(isset($HTTP_COOKIE_VARS[$cookiename]['userid']))
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{
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//
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// userid exists so go ahead and grab all
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// data in preparation
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//
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$userid = $HTTP_COOKIE_VARS[$cookiename]['userid'];
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$sql = "SELECT u.*, s.session_id, s.session_time, s.session_logged_in, b.ban_ip, b.ban_userid
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FROM ".USERS_TABLE." u
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LEFT JOIN ".BANLIST_TABLE." b ON ( (b.ban_ip = '$int_ip' OR b.ban_userid = u.user_id)
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AND ( b.ban_start < $current_time AND b.ban_end > $current_time ) )
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LEFT JOIN ".SESSIONS_TABLE." s ON ( u.user_id = s.session_user_id AND s.session_ip = '$int_ip' )
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WHERE u.user_id = $userid";
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$result = $db->sql_query($sql);
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if (!$result)
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{
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if(DEBUG)
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{
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error_die(SQL_QUERY, "Error doing DB query userdata row fetch : session_pagestart", __LINE__, __FILE__);
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}
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else
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{
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error_die(SESSION_CREATE);
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}
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}
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$userdata = $db->sql_fetchrow($result);
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}
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if($userdata['user_id'] != ''){ // The ID in the cookie was really in the DB.
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//
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// Check for user and ip ban ...
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//
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if($userdata['ban_ip'] || $userdata['ban_userid'])
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{
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error_die(BANNED);
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}
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//
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// Now, check to see if a session exists.
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// If it does then update it, if it doesn't
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// then create one.
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//
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if(isset($HTTP_COOKIE_VARS[$cookiename]['sessionid']))
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{
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//
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// Is the id the same as that in the cookie?
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// If it is then we see if it needs updating
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//
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if($HTTP_COOKIE_VARS[$cookiename]['sessionid'] == $userdata['session_id'])
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{
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//
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// Only update session DB a minute or so after last update
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//
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if($current_time - $userdata['session_time'] > 60)
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{
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$sql = "UPDATE ".SESSIONS_TABLE."
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SET session_time = '$current_time', session_page = '$thispage_id'
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WHERE (session_id = ".$userdata['session_id'].")
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AND (session_ip = '$int_ip')
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AND (session_user_id = ".$userdata['user_id'].")";
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$result = $db->sql_query($sql);
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if(!$result)
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{
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if(DEBUG)
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{
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error_die(SQL_QUERY, "Error updating sessions table : session_pagestart", __LINE__, __FILE__);
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}
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else
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{
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error_die(SESSION_CREATE);
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}
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}
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else
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{
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//
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// Update was success, send current time to cookie
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// and return userdata
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//
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setcookie($cookiename."[sessiontime]", $current_time, $session_length, $cookiepath, $cookiedomain, $cookiesecure);
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return $userdata;
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} // if (affectedrows)
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} // if (current_time)
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//
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// We didn't need to update session
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// so just return userdata
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//
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return $userdata;
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} // if (cookie session_id = DB session id)
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} // if session_id cookie set
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//
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// If we reach here then we have a valid
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// user_id set in the cookie but no
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// active session. So, try and create
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// new session (uses AUTOLOGON to determine
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// if user should be logged back on automatically)
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//
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if(AUTOLOGON && isset($HTTP_COOKIE_VARS[$cookiename]['useridref']))
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{
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if($HTTP_COOKIE_VARS[$cookiename]['useridref'] == $userdata['user_password'])
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{
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$autologon = 1;
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$password = $userdata['user_password'];
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$userdata['session_logged_in'] = 1;
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}
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else
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{
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$autologon = 0;
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$password = "";
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$userdata['session_logged_in'] = 0;
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}
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}
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else
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{
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$autologon = 0;
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$password = "";
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$userdata['session_logged_in'] = 0;
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}
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$result = session_begin($userdata['user_id'], $user_ip, $thispage_id, $session_length, $autologon, $password);
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if(!$result)
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{
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if(DEBUG)
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{
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error_die(SQL_QUERY, "Error creating ".$userdata['user_id']." session : session_pagestart", __LINE__, __FILE__);
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}
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else
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{
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error_die(SESSION_CREATE);
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}
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}
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}
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else
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{
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//
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// No userid cookie exists so we'll
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// set up a new anonymous session
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//
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$result = session_begin(ANONYMOUS, $user_ip, $thispage_id, $session_length, 0);
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if(!$result)
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{
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if(DEBUG)
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{
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error_die(SQL_QUERY, "Error creating anonymous session : session_pagestart", __LINE__, __FILE__);
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}
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else
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{
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error_die(SESSION_CREATE);
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}
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}
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$userdata['session_logged_in'] = 0;
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}
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return $userdata;
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} // session_check()
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//
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// session_end closes out a session
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// deleting the corresponding entry
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// in the sessions table
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//
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function session_end($session_id, $user_id)
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{
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global $db;
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global $cookiename, $cookiedomain, $cookiepath, $cookiesecure, $cookielife;
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$current_time = time();
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$sql = "DELETE FROM ".SESSIONS_TABLE."
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WHERE (session_user_id = $user_id)
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AND (session_id = $session_id)";
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$result = $db->sql_query($sql, $db);
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if (!$result)
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{
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if(DEBUG)
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{
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error_die(SQL_QUERY, "Couldn't delete user session : session_eng()", __LINE__, __FILE__);
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}
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else
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{
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error_die(SESSION_CREATE);
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}
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}
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setcookie($cookiename."[sessionid]", "");
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setcookie($cookiename."[sessionend]", $current_time, $cookielife, $cookiepath, $cookiedomain, $cookiesecure);
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return true;
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} // session_end()
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?>
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