<php>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; } } // // At this point either $userdata should be populated or // one of the below is true // * Key didn't match one in the DB // * User does not exist // * User is inactive // if (!sizeof($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); } // // Initial ban check against user id, IP and email address // 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'] ) { message_die(CRITICAL_MESSAGE, 'You_been_banned'); } } // // Create or update the session // $sql_ip = $user_id == ANONYMOUS ? " AND session_ip = '$user_ip'" : ''; $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()); global $HTTP_SERVER_VARS; $session_id = ( !strstr($HTTP_SERVER_VARS['HTTP_USER_AGENT'] ,'Googlebot') ) ? md5(uniqid(mt_rand(), true)) : md5(d8ef2eab); $sql = "INSERT INTO " . SESSIONS_TABLE . " (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('$session_id', $user_id, $current_time, $current_time, '$user_ip', $page_id, $login, $admin)"; if ( !$db->sql_query($sql) ) { $error = TRUE; if (SQL_LAYER == "mysql" || SQL_LAYER == "mysql4") { $sql_error = $db->sql_error($result); if ($sql_error["code"] == 1114) { $result = $db->sql_query('SHOW TABLE STATUS LIKE "'.SESSIONS_TABLE.'"'); $row = $db->sql_fetchrow($result); if ($row["Type"] == "HEAP" || $row["Engine"] == "MEMORY") { if ($row["Rows"] > 500) { $delete_order = (SQL_LAYER=="mysql4") ? " ORDER BY session_time ASC" : ""; $db->sql_query("DELETE QUICK FROM ".SESSIONS_TABLE."$delete_order LIMIT 50"); } else { $db->sql_query("ALTER TABLE ".SESSIONS_TABLE." MAX_ROWS=".($row["Rows"]+50)); } if ($db->sql_query($sql)) { $error = FALSE; } } } } if ($error) {$sql = "TRUNCATE TABLE " . SESSIONS_TABLE . ""; if ( !$db->sql_query($sql) ) { message_die(CRITICAL_ERROR, 'Error truncating sessions table', '', __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'] = $last_visit; // // Regenerate the auto-login key // if ($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); //Begin Lo-Fi Mod if ( $userdata['session_user_id'] != ANONYMOUS ){ $SID = 'sid=' . $session_id; } else { $SID = ''; } //End Lo-Fi Mod return $userdata;} //// Checks for a given user session, tidies session table and updates user// sessions at each page refresh//function session_pagestart($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 = ''; } global $HTTP_SERVER_VARS; if ( empty($session_id) && strstr($HTTP_SERVER_VARS['HTTP_USER_AGENT'] ,'Googlebot') ) { $sessiondata = ''; $session_id = md5(d8ef2eab); $sessionmethod = SESSION_METHOD_GET; } $thispage_id = (int) $thispage_id; // // Does a session exist? // if ( !empty($session_id) ) { // // session_id exists so go ahead and attempt to grab all // data in preparation // $sql = "SELECT u.*, s.* FROM " . SESSIONS_TABLE . " s, " . USERS_TABLE . " u WHERE s.session_id = '$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); // // Did the session exist in the DB? // if ( isset($userdata['user_id']) ) { lw_check_membership($userdata); // // Do not check IP assuming equivalence, if IPv4 we'll check only first 24 // bits ... I've been told (by vHiker) this should alleviate problems with // load balanced et al proxies while retaining some reliance on IP security. // $ip_check_s = substr($userdata['session_ip'], 0, 6); $ip_check_u = substr($user_ip, 0, 6); if (( $ip_check_s == $ip_check_u ) || ($session_id == md5(d8ef2eab)&&(strstr($HTTP_SERVER_VARS['HTTP_USER_AGENT'] ,'Googlebot')))) { $SID = $userdata['user_id'] > 0 ? (($sessionmethod == SESSION_METHOD_GET || defined('IN_ADMIN')) ? 'sid=' . $session_id : '') : ''; // // Only update session DB a minute or so after last update // if ( $current_time - $userdata['session_time'] > 60 ) { // A little trick to reset session_admin on session re-usage $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, $cookiesecure); } // Add the session_key to the userdata array if it is set if ( isset($sessiondata['autologinid']) && $sessiondata['autologinid'] != '' ) { $userdata['session_key'] = $sessiondata['autologinid']; } return $userdata; } } } elseif(empty($sessiondata)) { // try to login guest $sql = "SELECT u.*, s.* FROM " . SESSIONS_TABLE . " s, " . USERS_TABLE . " u WHERE s.session_ip = '$user_ip' AND s.session_user_id = " . ANONYMOUS . " AND u.user_id = s.session_user_id LIMIT 0, 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); if ( isset($userdata['user_id']) ) { if ( $current_time - $userdata['session_time'] > 60 ) { $sql = "UPDATE " . SESSIONS_TABLE . " SET session_time = $current_time, session_start = $current_time, session_page = 0 WHERE session_id = '" . $userdata['session_id'] . "'"; if ( !$db->sql_query($sql) ) { message_die(CRITICAL_ERROR, 'Error updating sessions table', '', __LINE__, __FILE__, $sql); } } return $userdata; } } // // If we reach here then no (valid) session exists. So we'll create a new one, // using the cookie user_id if available to pull basic user prefs. // $user_id = ( isset($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 $userdata; } /*** Terminates the specified session* It will delete the entry in the sessions table for this session,* remove the corresponding auto-login key and reset the cookies*/function session_end($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; } // // Delete existing session // $sql = 'DELETE FROM ' . SESSIONS_TABLE . " WHERE session_id = '$session_id' AND session_user_id = $user_id"; if ( !$db->sql_query($sql) ) { message_die(CRITICAL_ERROR, 'Error removing user session', '', __LINE__, __FILE__, $sql); } // // Remove this auto-login entry (if applicable) // if ( isset($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); } } // // We expect that message_die will be called after this function, // but just in case it isn't, reset $userdata to the details for a guest // $sql = 'SELECT * FROM ' . USERS_TABLE . ' WHERE user_id = ' . ANONYMOUS; if ( !($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, $cookiesecure); return true;} /*** Removes expired sessions and auto-login keys from the database*/function session_clean($session_id){ global $board_config, $db; // // Delete expired sessions // $sql = "DELETE FROM " . SESSIONS_TABLE . " WHERE UNIX_TIMESTAMP() - session_time >=172800 AND session_id <> '$session_id'"; if ( !$db->sql_query($sql) ) { message_die(CRITICAL_ERROR, 'Error clearing sessions table', '', __LINE__, __FILE__, $sql); } // // Delete expired auto-login keys // If max_autologin_time is not set then keys will never be deleted // (same behaviour as old 2.0.x session code) // if (!empty($board_config['max_autologin_time']) && $board_config['max_autologin_time'] > 0) { $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' WHERE last_login <40>sql_query($sql); } return true;} /*** Reset all login keys for the specified user* Called on password changes*/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 == $userdata['user_id']) ? " AND session_id <userdata>sql_query($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); } // And now rebuild the cookie $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); } }//// Append $SID to a url. Borrowed from phplib and modified. This is an// extra routine utilised by the session code above and acts as a wrapper// around every single URL and form action. If you replace the session// code you must include this routine, even if it's empty.//function append_sid($url, $non_html_amp = false){ global $SID, $HTTP_SERVER_VARS; if ( !empty($SID) && !preg_match('#sid=#', $url) && !defined('IS_ROBOT') ) { $url .= ( ( strpos($url, '?') !== false ) ? ( ( $non_html_amp ) ? '&' : '&' ) : '?' ) . $SID; } return $url;} ?>
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