<?php
/***************************************************************************
* sessions.php
* -------------------
* Разработка: phpBB Group.
* Оптимизация под WAP: Гутник Игорь ( чел ).
* 2007 год
***************************************************************************/
function session_begin($user_id, $user_ip, $page_id, $auto_create = 0, $enable_autologin = 0, $admin = 0)
{
global $db, $board_config;
global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID;
$cookiename = $board_config['cookie_name'];
$cookiepath = $board_config['cookie_path'];
$cookiedomain = $board_config['cookie_domain'];
$cookiesecure = $board_config['cookie_secure'];
if ( isset($HTTP_COOKIE_VARS[$cookiename . '_sid']) || isset($HTTP_COOKIE_VARS[$cookiename . '_data']) )
{
$session_id = isset($HTTP_COOKIE_VARS[$cookiename . '_sid']) ? $HTTP_COOKIE_VARS[$cookiename . '_sid'] : '';
$sessiondata = isset($HTTP_COOKIE_VARS[$cookiename . '_data']) ? unserialize(stripslashes($HTTP_COOKIE_VARS[$cookiename . '_data'])) : array();
$sessionmethod = SESSION_METHOD_COOKIE;
}
else
{
$sessiondata = array();
$session_id = ( isset($HTTP_GET_VARS['sid']) ) ? $HTTP_GET_VARS['sid'] : '';
$sessionmethod = SESSION_METHOD_GET;
}
if (!preg_match('/^[A-Za-z0-9]*$/', $session_id))
{
$session_id = '';
}
$page_id = (int) $page_id;
$last_visit = 0;
$current_time = time();
if (isset($board_config['allow_autologin']) && !$board_config['allow_autologin'])
{
$enable_autologin = $sessiondata['autologinid'] = false;
}
$userdata = array();
if ($user_id != ANONYMOUS)
{
if (isset($sessiondata['autologinid']) && (string) $sessiondata['autologinid'] != '' && $user_id)
{
$sql = 'SELECT u.*
FROM ' . USERS_TABLE . ' u, ' . SESSIONS_KEYS_TABLE . ' k
WHERE u.user_id = ' . (int) $user_id . "
AND u.user_active = 1
AND k.user_id = u.user_id
AND k.key_id = '" . md5($sessiondata['autologinid']) . "'";
if (!($result = $db->sql_query($sql)))
{
message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql);
}
$userdata = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
$enable_autologin = $login = 1;
}
else if (!$auto_create)
{
$sessiondata['autologinid'] = '';
$sessiondata['userid'] = $user_id;
$sql = 'SELECT *
FROM ' . USERS_TABLE . '
WHERE user_id = ' . (int) $user_id . '
AND user_active = 1';
if (!($result = $db->sql_query($sql)))
{
message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql);
}
$userdata = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
$login = 1;
}
}
if (!sizeof($userdata) || !is_array($userdata) || !$userdata)
{
$sessiondata['autologinid'] = '';
$sessiondata['userid'] = $user_id = ANONYMOUS;
$enable_autologin = $login = 0;
$sql = 'SELECT *
FROM ' . USERS_TABLE . '
WHERE user_id = ' . (int) $user_id;
if (!($result = $db->sql_query($sql)))
{
message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql);
}
$userdata = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
}
preg_match('/(..)(..)(..)(..)/', $user_ip, $user_ip_parts);
$sql = "SELECT ban_ip, ban_userid, ban_email
FROM " . BANLIST_TABLE . "
WHERE ban_ip IN ('" . $user_ip_parts[1] . $user_ip_parts[2] . $user_ip_parts[3] . $user_ip_parts[4] . "', '" . $user_ip_parts[1] . $user_ip_parts[2] . $user_ip_parts[3] . "ff', '" . $user_ip_parts[1] . $user_ip_parts[2] . "ffff', '" . $user_ip_parts[1] . "ffffff')
OR ban_userid = $user_id";
if ( $user_id != ANONYMOUS )
{
$sql .= " OR ban_email LIKE '" . str_replace("\'", "''", $userdata['user_email']) . "'
OR ban_email LIKE '" . substr(str_replace("\'", "''", $userdata['user_email']), strpos(str_replace("\'", "''", $userdata['user_email']), "@")) . "'";
}
if ( !($result = $db->sql_query($sql)) )
{
message_die(CRITICAL_ERROR, 'Could not obtain ban information', '', __LINE__, __FILE__, $sql);
}
if ( $ban_info = $db->sql_fetchrow($result) )
{
if ( $ban_info['ban_ip'] || $ban_info['ban_userid'] || $ban_info['ban_email'] )
{
$resban = db_query("SELECT * FROM " . REPUTATION_TABLE . " WHERE (`modification` =4 AND `user_id` =$user_id)");
if ( $row = $db->sql_fetchrow($resban) )
{
$moderid = $row['voter_id'];
$resmoder = db_query("SELECT * FROM " . USERS_TABLE . " WHERE (`user_id` =$moderid)");
if ( $mod = $db->sql_fetchrow($resmoder) )
{
$modername = $mod['username'];
}
$razbloktime = $row['expire'] - (time() + (3600 * $board_config['board_timezone']));
$chas = floor(($razbloktime / 3600) + $board_config['board_timezone']);
$min = floor(($razbloktime / 60) + ($board_config['board_timezone'] * 60));
$dni = ceil((($razbloktime / 3600) + $board_config['board_timezone']) / 24);
message_die(CRITICAL_MESSAGE, 'Ваш аккуант был заблокирован модератором ' . $modername . ' в связи с несоблюдением правил форума!<br/>До автоматического восстановления осталось ' . $dni . ' дней (в часах ' . $chas . ' ч, в минутах '. $min . ' мин)<br/>А пока есть время, читаем <a href="rules.php">правила</a> и думаем над своим поведением...');
} else {
message_die(CRITICAL_MESSAGE, 'Ваш аккуант был заблокирован на неопределённое время в связи с несоблюдением правил форума!<br/>За дополнительной информацией обращайтесь к администрации форума...');
}
}
}
$sql = "UPDATE " . SESSIONS_TABLE . "
SET session_user_id = $user_id, session_start = $current_time, session_time = $current_time, session_page = $page_id, session_logged_in = $login, session_admin = $admin
WHERE session_id = '" . $session_id . "'
AND session_ip = '$user_ip'";
if ( !$db->sql_query($sql) || !$db->sql_affectedrows() )
{
$session_id = md5(dss_rand());
$sql = "INSERT INTO " . SESSIONS_TABLE . "
(session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin)
VALUES ('$session_id', $user_id, $current_time, $current_time, '$user_ip', $page_id, $login, $admin)";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error creating new session', '', __LINE__, __FILE__, $sql);
}
}
if ( $user_id != ANONYMOUS )
{
$last_visit = ( $userdata['user_session_time'] > 0 ) ? $userdata['user_session_time'] : $current_time;
if (!$admin)
{
$sql = "UPDATE " . USERS_TABLE . "
SET user_session_time = $current_time, user_session_page = $page_id, user_lastvisit = $last_visit
WHERE user_id = $user_id";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error updating last visit time', '', __LINE__, __FILE__, $sql);
}
}
$userdata['user_lastvisit'] = $last_visit;
if ($enable_autologin)
{
$auto_login_key = dss_rand() . dss_rand();
if (isset($sessiondata['autologinid']) && (string) $sessiondata['autologinid'] != '')
{
$sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . "
SET last_ip = '$user_ip', key_id = '" . md5($auto_login_key) . "', last_login = $current_time
WHERE key_id = '" . md5($sessiondata['autologinid']) . "'";
}
else
{
$sql = 'INSERT INTO ' . SESSIONS_KEYS_TABLE . "(key_id, user_id, last_ip, last_login)
VALUES ('" . md5($auto_login_key) . "', $user_id, '$user_ip', $current_time)";
}
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error updating session key', '', __LINE__, __FILE__, $sql);
}
$sessiondata['autologinid'] = $auto_login_key;
unset($auto_login_key);
}
else
{
$sessiondata['autologinid'] = '';
}
// $sessiondata['autologinid'] = (!$admin) ? (( $enable_autologin && $sessionmethod == SESSION_METHOD_COOKIE ) ? $auto_login_key : '') : $sessiondata['autologinid'];
$sessiondata['userid'] = $user_id;
}
$userdata['session_id'] = $session_id;
$userdata['session_ip'] = $user_ip;
$userdata['session_user_id'] = $user_id;
$userdata['session_logged_in'] = $login;
$userdata['session_page'] = $page_id;
$userdata['session_start'] = $current_time;
$userdata['session_time'] = $current_time;
$userdata['session_admin'] = $admin;
$userdata['session_key'] = $sessiondata['autologinid'];
setcookie($cookiename . '_data', serialize($sessiondata), $current_time + 31536000, $cookiepath, $cookiedomain, $cookiesecure);
setcookie($cookiename . '_sid', $session_id, 0, $cookiepath, $cookiedomain, $cookiesecure);
$SID = 'sid=' . $session_id;
return $userdata;
}
function session_pagestart($user_ip, $thispage_id)
{
global $db, $lang, $board_config;
global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID;
$cookiename = $board_config['cookie_name'];
$cookiepath = $board_config['cookie_path'];
$cookiedomain = $board_config['cookie_domain'];
$cookiesecure = $board_config['cookie_secure'];
$current_time = time();
unset($userdata);
if ( isset($HTTP_COOKIE_VARS[$cookiename . '_sid']) || isset($HTTP_COOKIE_VARS[$cookiename . '_data']) )
{
$sessiondata = isset( $HTTP_COOKIE_VARS[$cookiename . '_data'] ) ? unserialize(stripslashes($HTTP_COOKIE_VARS[$cookiename . '_data'])) : array();
$session_id = isset( $HTTP_COOKIE_VARS[$cookiename . '_sid'] ) ? $HTTP_COOKIE_VARS[$cookiename . '_sid'] : '';
$sessionmethod = SESSION_METHOD_COOKIE;
}
else
{
$sessiondata = array();
$session_id = ( isset($HTTP_GET_VARS['sid']) ) ? $HTTP_GET_VARS['sid'] : '';
$sessionmethod = SESSION_METHOD_GET;
}
if (!preg_match('/^[A-Za-z0-9]*$/', $session_id))
{
$session_id = '';
}
$thispage_id = (int) $thispage_id;
if ( !empty($session_id) )
{
$sql = "SELECT u.*, s.*
FROM " . SESSIONS_TABLE . " s, " . USERS_TABLE . " u
WHERE s.session_id = '$session_id'
AND u.user_id = s.session_user_id";
if ( !($result = $db->sql_query($sql)) )
{
message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql);
}
$userdata = $db->sql_fetchrow($result);
if ( isset($userdata['user_id']) )
{
$ip_check_s = substr($userdata['session_ip'], 0, 6);
$ip_check_u = substr($user_ip, 0, 6);
if ($ip_check_s == $ip_check_u)
{
$SID = ($sessionmethod == SESSION_METHOD_GET || defined('IN_ADMIN')) ? 'sid=' . $session_id : '';
if ( $current_time - $userdata['session_time'] > 60 )
{
$update_admin = (!defined('IN_ADMIN') && $current_time - $userdata['session_time'] > ($board_config['session_length']+60)) ? ', session_admin = 0' : '';
$sql = "UPDATE " . SESSIONS_TABLE . "
SET session_time = $current_time, session_page = $thispage_id$update_admin
WHERE session_id = '" . $userdata['session_id'] . "'";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error updating sessions table', '', __LINE__, __FILE__, $sql);
}
if ( $userdata['user_id'] != ANONYMOUS )
{
$sql = "UPDATE " . USERS_TABLE . "
SET user_session_time = $current_time, user_session_page = $thispage_id
WHERE user_id = " . $userdata['user_id'];
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error updating sessions table', '', __LINE__, __FILE__, $sql);
}
}
session_clean($userdata['session_id']);
setcookie($cookiename . '_data', serialize($sessiondata), $current_time + 31536000, $cookiepath, $cookiedomain, $cookiesecure);
setcookie($cookiename . '_sid', $session_id, 0, $cookiepath, $cookiedomain, $cookiesecure);
}
if ( isset($sessiondata['autologinid']) && $sessiondata['autologinid'] != '' )
{
$userdata['session_key'] = $sessiondata['autologinid'];
}
return $userdata;
}
}
}
$user_id = ( isset($sessiondata['userid']) ) ? intval($sessiondata['userid']) : ANONYMOUS;
if ( !($userdata = session_begin($user_id, $user_ip, $thispage_id, TRUE)) )
{
message_die(CRITICAL_ERROR, 'Error creating user session', '', __LINE__, __FILE__, $sql);
}
return $userdata;
}
function session_end($session_id, $user_id)
{
global $db, $lang, $board_config, $userdata;
global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID;
$cookiename = $board_config['cookie_name'];
$cookiepath = $board_config['cookie_path'];
$cookiedomain = $board_config['cookie_domain'];
$cookiesecure = $board_config['cookie_secure'];
$current_time = time();
if (!preg_match('/^[A-Za-z0-9]*$/', $session_id))
{
return;
}
$sql = 'DELETE FROM ' . SESSIONS_TABLE . "
WHERE session_id = '$session_id'
AND session_user_id = $user_id";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error removing user session', '', __LINE__, __FILE__, $sql);
}
if ( isset($userdata['session_key']) && $userdata['session_key'] != '' )
{
$autologin_key = md5($userdata['session_key']);
$sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . '
WHERE user_id = ' . (int) $user_id . "
AND key_id = '$autologin_key'";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error removing auto-login key', '', __LINE__, __FILE__, $sql);
}
}
$sql = 'SELECT *
FROM ' . USERS_TABLE . '
WHERE user_id = ' . ANONYMOUS;
if ( !($result = $db->sql_query($sql)) )
{
message_die(CRITICAL_ERROR, 'Error obtaining user details', '', __LINE__, __FILE__, $sql);
}
if ( !($userdata = $db->sql_fetchrow($result)) )
{
message_die(CRITICAL_ERROR, 'Error obtaining user details', '', __LINE__, __FILE__, $sql);
}
$db->sql_freeresult($result);
setcookie($cookiename . '_data', '', $current_time - 31536000, $cookiepath, $cookiedomain, $cookiesecure);
setcookie($cookiename . '_sid', '', $current_time - 31536000, $cookiepath, $cookiedomain, $cookiesecure);
return true;
}
function session_clean($session_id)
{
global $board_config, $db;
$sql = 'DELETE FROM ' . SESSIONS_TABLE . '
WHERE session_time < ' . (time() - (int) $board_config['session_length']) . "
AND session_id <> '$session_id'";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error clearing sessions table', '', __LINE__, __FILE__, $sql);
}
if (!empty($board_config['max_autologin_time']) && $board_config['max_autologin_time'] > 0)
{
$sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . '
WHERE last_login < ' . (time() - (86400 * (int) $board_config['max_autologin_time']));
$db->sql_query($sql);
}
return true;
}
function session_reset_keys($user_id, $user_ip)
{
global $db, $userdata, $board_config;
$key_sql = ($user_id == $userdata['user_id'] && !empty($userdata['session_key'])) ? "AND key_id != '" . md5($userdata['session_key']) . "'" : '';
$sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . '
WHERE user_id = ' . (int) $user_id . "
$key_sql";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error removing auto-login keys', '', __LINE__, __FILE__, $sql);
}
$where_sql = 'session_user_id = ' . (int) $user_id;
$where_sql .= ($user_id == $userdata['user_id']) ? " AND session_id <> '" . $userdata['session_id'] . "'" : '';
$sql = 'DELETE FROM ' . SESSIONS_TABLE . "
WHERE $where_sql";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error removing user session(s)', '', __LINE__, __FILE__, $sql);
}
if ( !empty($key_sql) )
{
$auto_login_key = dss_rand() . dss_rand();
$current_time = time();
$sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . "
SET last_ip = '$user_ip', key_id = '" . md5($auto_login_key) . "', last_login = $current_time
WHERE key_id = '" . md5($userdata['session_key']) . "'";
if ( !$db->sql_query($sql) )
{
message_die(CRITICAL_ERROR, 'Error updating session key', '', __LINE__, __FILE__, $sql);
}
$sessiondata['userid'] = $user_id;
$sessiondata['autologinid'] = $auto_login_key;
$cookiename = $board_config['cookie_name'];
$cookiepath = $board_config['cookie_path'];
$cookiedomain = $board_config['cookie_domain'];
$cookiesecure = $board_config['cookie_secure'];
setcookie($cookiename . '_data', serialize($sessiondata), $current_time + 31536000, $cookiepath, $cookiedomain, $cookiesecure);
$userdata['session_key'] = $auto_login_key;
unset($sessiondata);
unset($auto_login_key);
}
}
function append_sid($url, $non_html_amp = false)
{
global $SID;
if ( !empty($SID) && !preg_match('#sid=#', $url) )
{
$url .= ( ( strpos($url, '?') !== false ) ? ( ( $non_html_amp ) ? '&' : '&' ) : '?' ) . $SID;
}
return $url;
}
?>