egroupware_official/phpgwapi/inc/class.sessions.inc.php

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<?php
/**************************************************************************\
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* phpGroupWare API - Session management *
* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
* and Joseph Engo <jengo@phpgroupware.org> *
* Copyright (C) 2000, 2001 Dan Kuykendall *
* -------------------------------------------------------------------------*
* This library is part of the phpGroupWare API *
* http://www.phpgroupware.org/api *
* ------------------------------------------------------------------------ *
2001-01-13 11:18:50 +01:00
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, *
* or any later version. *
* This library is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* See the GNU Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
class sessions
{
function getuser_ip()
{
global $REMOTE_ADDR, $HTTP_X_FORWARDED_FOR;
if ($HTTP_X_FORWARDED_FOR) {
return $HTTP_X_FORWARDED_FOR;
} else {
return $REMOTE_ADDR;
}
}
function verify()
{
global $phpgw, $phpgw_info, $sessionid, $kp3;
$db = $phpgw->db;
$db2 = $phpgw->db;
// PHP 3 complains that these are not defined when the already are defined.
$phpgw->common->key = $phpgw_info["server"]["encryptkey"];
$phpgw->common->key .= $sessionid;
$phpgw->common->key .= $kp3;
$phpgw->common->iv = $phpgw_info["server"]["mcrypt_iv"];
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$cryptovars[0] = $phpgw->common->key;
$cryptovars[1] = $phpgw->common->iv;
$phpgw->crypto = CreateObject("phpgwapi.crypto", $cryptovars);
$db->query("select * from phpgw_sessions where session_id='$sessionid'",__LINE__,__FILE__);
$db->next_record();
if ($db->f("session_info") == "" || $db->f("session_info") == "NULL") {
$phpgw_info["user"]["account_lid"] = $db->f("session_lid");
$phpgw_info["user"]["sessionid"] = $sessionid;
$phpgw_info["user"]["session_ip"] = $db->f("session_ip");
$t = explode("@",$db->f("session_lid"));
$phpgw_info["user"]["userid"] = $t[0];
$phpgw->accounts->sync(__LINE__,__FILE__);
// Now we need to re-read eveything
$db->query("select * from phpgw_sessions where session_id='$sessionid'",__LINE__,__FILE__);
$db->next_record();
}
$phpgw_info["user"]["kp3"] = $kp3;
$phpgw_info_flags = $phpgw_info["flags"];
$phpgw_info = $phpgw->crypto->decrypt($db->f("session_info"));
$phpgw_info["flags"] = $phpgw_info_flags;
$userid_array = explode("@",$db->f("session_lid"));
$phpgw_info["user"]["userid"] = $userid_array[0];
if ($userid_array[1] != $phpgw_info["user"]["domain"]) {
return False;
}
if (PHP_OS != "Windows" && (! $phpgw_info["user"]["session_ip"] || $phpgw_info["user"]["session_ip"] != $this->getuser_ip())){
return False;
}
$this->update_dla();
if (! $phpgw_info["user"]["userid"] ) {
return False;
} else {
// PHP 3 complains that these are not defined when the already are defined.
return True;
}
}
// This will remove stale sessions out of the database
function clean_sessions()
{
global $phpgw_info, $phpgw;
// Note: I need to add a db->lock() in here
if (!isset($phpgw_info["server"]["cron_apps"]) || ! $phpgw_info["server"]["cron_apps"]) {
$phpgw->db->query("delete from phpgw_sessions where session_dla <= '" . (time() - 7200)
. "'",__LINE__,__FILE__);
}
}
function create($login,$passwd)
{
global $phpgw_info, $phpgw;
$this->clean_sessions();
$login_array = explode("@", $login);
$phpgw_info["user"]["userid"] = $login_array[0];
if ($phpgw_info["server"]["global_denied_users"][$phpgw_info["user"]["userid"]]) {
return False;
}
if (!$phpgw->auth->authenticate($phpgw_info["user"]["userid"], $passwd)) {
return False;
exit;
}
$phpgw_info["user"]["sessionid"] = md5($phpgw->common->randomstring(10));
$phpgw_info["user"]["kp3"] = md5($phpgw->common->randomstring(15));
$phpgw->common->key = $phpgw_info["server"]["encryptkey"];
$phpgw->common->key .= $phpgw_info["user"]["sessionid"];
$phpgw->common->key .= $phpgw_info["user"]["kp3"];
$phpgw->common->iv = $phpgw_info["server"]["mcrypt_iv"];
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$cryptovars[0] = $phpgw->common->key;
$cryptovars[1] = $phpgw->common->iv;
$phpgw->crypto = CreateObject("phpgwapi.crypto", $cryptovars);
$phpgw_info["user"]["passwd"] = $phpgw->common->encrypt($passwd);
if ($phpgw_info["server"]["usecookies"]) {
Setcookie("sessionid",$phpgw_info["user"]["sessionid"]);
Setcookie("kp3",$phpgw_info["user"]["kp3"]);
Setcookie("domain",$phpgw_info["user"]["domain"]);
Setcookie("last_domain",$phpgw_info["user"]["domain"],time()+1209600);
if ($phpgw_info["user"]["domain"] ==$phpgw_info["server"]["default_domain"]) {
Setcookie("last_loginid",$phpgw_info["user"]["userid"],time()+1209600); // For 2 weeks
} else {
Setcookie("last_loginid",$loginid,time()+1209600); // For 2 weeks
}
unset ($phpgw_info["server"]["default_domain"]); // we kill this for security reasons
}
//$phpgw->accounts->accounts_const();
$phpgw_info["user"]["session_ip"] = $this->getuser_ip();
$phpgw->db->query("insert into phpgw_sessions values ('" . $phpgw_info["user"]["sessionid"]
. "','".$login."','" . $this->getuser_ip() . "','"
. time() . "','" . time() . "','')",__LINE__,__FILE__);
$phpgw->accounts->sync(__LINE__,__FILE__);
$phpgw->db->query("insert into phpgw_access_log values ('" . $phpgw_info["user"]["sessionid"] . "','"
. "$login','" . $this->getuser_ip() . "','" . time()
. "','') ",__LINE__,__FILE__);
$phpgw->db->query("update accounts set account_lastloginfrom='"
. $this->getuser_ip() . "', account_lastlogin='" . time()
. "' where account_lid='".$login."'",__LINE__,__FILE__);
return $phpgw_info["user"]["sessionid"];
}
// This will update the DateLastActive column, so the login does not expire
function update_dla()
{
global $phpgw_info, $phpgw;
$phpgw->db->query("update phpgw_sessions set session_dla='" . time() . "' where session_id='"
. $phpgw_info["user"]["sessionid"]."'",__LINE__,__FILE__);
}
function destroy()
{
global $phpgw, $phpgw_info, $sessionid, $kp3;
$phpgw_info["user"]["sessionid"] = $sessionid;
$phpgw_info["user"]["kp3"] = $kp3;
$phpgw->db->query("delete from phpgw_sessions where session_id='"
. $phpgw_info["user"]["sessionid"] . "'",__LINE__,__FILE__);
$phpgw->db->query("delete from phpgw_app_sessions where sessionid='"
. $phpgw_info["user"]["sessionid"] . "'",__LINE__,__FILE__);
$phpgw->db->query("update phpgw_access_log set lo='" . time() . "' where sessionid='"
. $phpgw_info["user"]["sessionid"] . "'",__LINE__,__FILE__);
if ($phpgw_info["server"]["usecookies"]) {
Setcookie("sessionid");
Setcookie("kp3");
if ($phpgw_info["multiable_domains"]) {
Setcookie("domain");
}
}
$this->clean_sessions();
return True;
}
}
?>