mirror of
https://github.com/EGroupware/egroupware.git
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577 lines
18 KiB
PHP
577 lines
18 KiB
PHP
<?php
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/**************************************************************************\
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* phpGroupWare API - Session management *
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* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
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* and Joseph Engo <jengo@phpgroupware.org> *
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* Copyright (C) 2000, 2001 Dan Kuykendall *
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* -------------------------------------------------------------------------*
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* This library is part of the phpGroupWare API *
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* http://www.phpgroupware.org/api *
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* ------------------------------------------------------------------------ *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published by *
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* the Free Software Foundation; either version 2.1 of the License, *
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* or any later version. *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* See the GNU Lesser General Public License for more details. *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with this library; if not, write to the Free Software Foundation, *
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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\**************************************************************************/
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/* $Id$ */
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/*
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** Reserved session_flags
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** A - anonymous session
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** U - Force update of phpgw_info cache
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** N - None, normal session
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*/
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class sessions
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{
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var $login;
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var $passwd;
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var $account_id;
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var $account_lid;
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var $account_domain;
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var $session_flags;
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var $sessionid;
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var $kp3;
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var $data;
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var $db;
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var $db2;
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/*************************************************************************\
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* Constructor just loads up some defaults from cookies *
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\*************************************************************************/
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function sessions()
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{
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global $phpgw, $phpgw_info, $sessionid, $kp3;
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$this->db = $phpgw->db;
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$this->db2 = $phpgw->db;
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$this->sessionid = $sessionid;
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$this->kp3 = $kp3;
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}
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/*************************************************************************\
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* Functions for creating and verifying the session *
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\*************************************************************************/
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function getuser_ip()
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{
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global $REMOTE_ADDR, $HTTP_X_FORWARDED_FOR;
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if ($HTTP_X_FORWARDED_FOR)
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{
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return $HTTP_X_FORWARDED_FOR;
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}
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else
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{
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return $REMOTE_ADDR;
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}
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}
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function verify()
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{
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global $phpgw, $phpgw_info, $sessionid, $kp3;
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$db = $phpgw->db;
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$db2 = $phpgw->db;
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$this->sessionid = $sessionid;
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$this->kp3 = $kp3;
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$phpgw->common->key = md5($this->kp3 . $this->sessionid . $phpgw_info['server']['encryptkey']);
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$phpgw->common->iv = $phpgw_info['server']['mcrypt_iv'];
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$cryptovars[0] = $phpgw->common->key;
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$cryptovars[1] = $phpgw->common->iv;
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$phpgw->crypto = CreateObject('phpgwapi.crypto', $cryptovars);
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$db->query("select * from phpgw_sessions where session_id='" . $this->sessionid . "'",__LINE__,__FILE__);
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$db->next_record();
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$this->session_flags = $db->f('session_flags');
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// This is going to be replace with the session_flag field
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if ($this->session_flags == 'U')
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{
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/* $this->account_lid = $db->f('session_lid');
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$phpgw_info['user']['sessionid'] = $this->sessionid;
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$phpgw_info['user']['session_ip'] = $db->f('session_ip');
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$t = explode('@',$db->f('session_lid'));
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$this->account_lid = $t[0];
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// Now we need to re-read eveything
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$db->query("select * from phpgw_sessions where session_id='$this->sessionid'",__LINE__,__FILE__);
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$db->next_record(); */
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}
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$login_array = explode('@', $db->f('session_lid'));
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$this->account_lid = $login_array[0];
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if ($login_array[1] != '')
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{
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$this->account_domain = $login_array[1];
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}
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else
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{
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$this->account_domain = $phpgw_info['server']['default_domain'];
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}
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$phpgw_info['user']['kp3'] = $this->kp3;
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$phpgw_info_flags = $phpgw_info['flags'];
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$phpgw_info['flags'] = $phpgw_info_flags;
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$userid_array = explode('@',$db->f('session_lid'));
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$this->account_lid = $userid_array[0];
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$this->update_dla();
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$this->account_id = $phpgw->accounts->name2id($this->account_lid);
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if (! $this->account_id)
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{
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return False;
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}
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if ($phpgw_info['server']['cache_phpgw_info'])
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{
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$t = $this->appsession('phpgw_info_cache','phpgwapi');
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$phpgw_info['server'] = $t['server'];
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$phpgw_info['user'] = $t['user'];
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$phpgw_info['hooks'] = $t['hooks'];
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}
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else
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{
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$this->read_repositories();
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$phpgw_info['user'] = $this->user;
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$phpgw_info['hooks'] = $this->hooks;
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}
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$phpgw_info['user']['session_ip'] = $db->f('session_ip');
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$phpgw_info['user']['passwd'] = $this->appsession('password','phpgwapi');
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if ($userid_array[1] != $phpgw_info['user']['domain'])
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{
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return False;
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}
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if (PHP_OS != 'Windows' && (! $phpgw_info['user']['session_ip'] || $phpgw_info['user']['session_ip'] != $this->getuser_ip()))
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{
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return False;
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}
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$phpgw->acl->acl($this->account_id);
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$phpgw->accounts->accounts($this->account_id);
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$phpgw->preferences->preferences($this->account_id);
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$phpgw->applications->applications($this->account_id);
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if (! $this->account_lid)
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{
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return False;
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}
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else
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{
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return True;
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}
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}
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// This will remove stale sessions out of the database
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function clean_sessions()
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{
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global $phpgw_info, $phpgw;
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if (!isset($phpgw_info['server']['cron_apps']) || ! $phpgw_info['server']['cron_apps'])
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{
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$phpgw->db->query("delete from phpgw_sessions where session_dla <= '" . (time() - 7200)
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. "' and session_flags !='A'",__LINE__,__FILE__);
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}
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}
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function create($login,$passwd)
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{
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global $phpgw_info, $phpgw;
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$this->login = $login;
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$this->passwd = $passwd;
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$this->clean_sessions();
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$login_array = explode('@', $login);
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$this->account_lid = $login_array[0];
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$now = time();
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if ($login_array[1] != '')
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{
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$this->account_domain = $login_array[1];
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}
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else
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{
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$this->account_domain = $phpgw_info['server']['default_domain'];
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}
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if ($phpgw_info['server']['global_denied_users'][$this->account_lid])
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{
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return False;
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}
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if (! $phpgw->auth->authenticate($this->account_lid, $passwd))
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{
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return False;
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exit;
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}
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if (!$phpgw->accounts->exists($this->account_lid) && $phpgw_info['server']['auto_create_acct'] == True)
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{
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$this->account_id = $phpgw->accounts->auto_add($this->account_lid, $passwd);
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}
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else
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{
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$this->account_id = $phpgw->accounts->name2id($this->account_lid);
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}
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$phpgw->accounts->account_id = $this->account_id;
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$this->sessionid = md5($phpgw->common->randomstring(10));
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$this->kp3 = md5($phpgw->common->randomstring(15));
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$phpgw->common->key = md5($this->kp3 . $this->sessionid . $phpgw_info['server']['encryptkey']);
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$phpgw->common->iv = $phpgw_info['server']['mcrypt_iv'];
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$cryptovars[0] = $phpgw->common->key;
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$cryptovars[1] = $phpgw->common->iv;
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$phpgw->crypto = CreateObject('phpgwapi.crypto', $cryptovars);
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if ($phpgw_info['server']['usecookies'])
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{
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Setcookie('sessionid',$this->sessionid);
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Setcookie('kp3',$this->kp3);
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Setcookie('domain',$this->account_domain);
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Setcookie('last_domain',$this->account_domain,$now+1209600);
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if ($this->account_domain == $phpgw_info['server']['default_domain'])
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{
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Setcookie('last_loginid', $this->account_lid ,$now+1209600); // For 2 weeks
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}
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else
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{
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Setcookie('last_loginid', $login ,$now+1209600); // For 2 weeks
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}
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unset ($phpgw_info['server']['default_domain']); // we kill this for security reasons
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}
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$this->read_repositories();
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$phpgw_info['user'] = $this->user;
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$phpgw_info['hooks'] = $this->hooks;
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if ($phpgw_info['server']['cache_phpgw_info'])
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{
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$this->appsession('phpgw_info_cache','phpgwapi',$phpgw_info);
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}
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// If they are not useing cache, we need to store it somewhere
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$this->appsession('password','phpgwapi',$this->passwd);
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if ($phpgw->acl->check('anonymous',1,'phpgwapi'))
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{
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$session_flags = 'A';
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}
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else
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{
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$session_flags = 'N';
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}
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$phpgw->db->query("insert into phpgw_sessions values ('" . $this->sessionid
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. "','".$login."','" . $this->getuser_ip() . "','"
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. $now . "','" . $now . "','".$info_string."','" . $session_flags
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. "')",__LINE__,__FILE__);
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$phpgw->db->query("insert into phpgw_access_log values ('" . $this->sessionid . "','"
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. "$login','" . $this->getuser_ip() . "','$now','') ",__LINE__,__FILE__);
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$phpgw->auth->update_lastlogin($this->account_id,$this->getuser_ip());
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return $this->sessionid;
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}
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// This will update the DateLastActive column, so the login does not expire
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function update_dla()
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{
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global $phpgw_info, $phpgw, $PHP_SELF;
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$phpgw->db->query("update phpgw_sessions set session_dla='" . time() . "', session_action='$PHP_SELF'"
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. " where session_id='" . $this->sessionid."'",__LINE__,__FILE__);
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}
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function destroy()
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{
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global $phpgw, $phpgw_info, $sessionid, $kp3;
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$phpgw_info['user']['sessionid'] = $sessionid;
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$phpgw_info['user']['kp3'] = $kp3;
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$phpgw->db->query("delete from phpgw_sessions where session_id='"
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. $phpgw_info['user']['sessionid'] . "'",__LINE__,__FILE__);
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$phpgw->db->query("delete from phpgw_app_sessions where sessionid='"
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. $phpgw_info['user']['sessionid'] . "'",__LINE__,__FILE__);
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$phpgw->db->query("update phpgw_access_log set lo='" . time() . "' where sessionid='"
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. $phpgw_info['user']['sessionid'] . "'",__LINE__,__FILE__);
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if ($phpgw_info['server']['usecookies'])
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{
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Setcookie('sessionid');
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Setcookie('kp3');
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if ($phpgw_info['multiable_domains'])
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{
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Setcookie('domain');
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}
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}
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$this->clean_sessions();
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return True;
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}
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/*************************************************************************\
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* Functions for appsession data and session cache *
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\*************************************************************************/
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function read_repositories()
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{
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global $phpgw;
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$phpgw->acl->acl($this->account_id);
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$phpgw->accounts->accounts($this->account_id);
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$phpgw->preferences->preferences($this->account_id);
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$phpgw->applications->applications($this->account_id);
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$this->user = $phpgw->accounts->read_repository();
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$this->user['acl'] = $phpgw->acl->read_repository();
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$this->user['preferences'] = $phpgw->preferences->read_repository();
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$this->user['apps'] = $phpgw->applications->read_repository();
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//@reset($this->data['user']['apps']);
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$this->user['domain'] = $this->account_domain;
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$this->user['sessionid'] = $this->sessionid;
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$this->user['kp3'] = $this->kp3;
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$this->user['session_ip'] = $this->getuser_ip();
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$this->user['session_lid'] = $this->account_lid.'@'.$this->account_domain;
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$this->user['account_id'] = $this->account_id;
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$this->user['account_lid'] = $this->account_lid;
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$this->user['userid'] = $this->account_lid;
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$this->user['passwd'] = $this->passwd;
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$this->hooks = $phpgw->hooks->read();
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}
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function save_repositories()
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{
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global $phpgw, $phpgw_info;
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$phpgw_info_temp = $phpgw_info;
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$phpgw_info_temp['user']['kp3'] = '';
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$phpgw_info_temp['flags'] = array();
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if ($phpgw_info['server']['cache_phpgw_info'])
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{
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$this->appsession('phpgw_info_cache','phpgwapi',$phpgw_info_temp);
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}
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}
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function appsession($location = 'default', $appname = '', $data = '##NOTHING##')
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{
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global $phpgw_info, $phpgw;
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if (! $appname)
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{
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$appname = $phpgw_info['flags']['currentapp'];
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}
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/* This allows the user to put "" as the value. */
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if ($data == '##NOTHING##') {
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$query = "select content from phpgw_app_sessions where"
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." sessionid = '".$this->sessionid."' and loginid = '".$this->account_id."'"
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." and app = '".$appname."' and location = '".$location."'";
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$phpgw->db->query($query,__LINE__,__FILE__);
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$phpgw->db->next_record();
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// I added these into seperate steps for easier debugging
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$data = $phpgw->db->f('content');
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$data = $phpgw->common->decrypt($data);
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$data = stripslashes($data);
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return $data;
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} else {
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$phpgw->db->query("select content from phpgw_app_sessions where "
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. "sessionid = '".$this->sessionid."' and loginid = '".$this->account_id."'"
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. "and app = '".$appname."' and location = '".$location."'",__LINE__,__FILE__);
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if ($phpgw->db->num_rows()==0) {
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// I added these into seperate steps for easier debugging
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$data = serialize($data);
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$data = $phpgw->crypto->encrypt($data);
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$phpgw->db->query("INSERT INTO phpgw_app_sessions (sessionid,loginid,app,location,content) "
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. "VALUES ('".$this->sessionid."','".$this->account_id."','".$appname
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. "','".$location."','".$data."')",__LINE__,__FILE__);
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} else {
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$data = $phpgw->crypto->encrypt(serialize($data));
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$phpgw->db->query("update phpgw_app_sessions set content = '".$data."'"
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. "where sessionid = '".$this->sessionid."'"
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. "and loginid = '".$this->account_id."' and app = '".$appname."'"
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. "and location = '".$location."'",__LINE__,__FILE__);
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}
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return unserialize($data);
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}
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}
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function restore()
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{
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global $phpgw;
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$serializedData = $this->appsession();
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$sessionData = unserialize($serializedData);
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if (is_array($sessionData))
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{
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reset($sessionData);
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while(list($key,$value) = each($sessionData))
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{
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global $$key;
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$$key = $value;
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$this->variableNames[$key] = 'registered';
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#print "restored: ".$key.", $value<br>";
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}
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}
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}
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// save the current values of the variables
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function save()
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{
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global $phpgw;
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if (is_array($this->variableNames))
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{
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reset($this->variableNames);
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while(list($key, $value) = each($this->variableNames))
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{
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if ($value == 'registered')
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{
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global $$key;
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$sessionData[$key] = $$key;
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}
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}
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$this->appsession($sessionData);
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}
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}
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// create a list a variable names, wich data need's to be restored
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function register($_variableName)
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{
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$this->variableNames[$_variableName]='registered';
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#print 'registered '.$_variableName.'<br>';
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}
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// mark variable as unregistered
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function unregister($_variableName)
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{
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$this->variableNames[$_variableName]='unregistered';
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#print 'unregistered '.$_variableName.'<br>';
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}
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// check if we have a variable registred already
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function is_registered($_variableName)
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{
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if ($this->variableNames[$_variableName] == 'registered')
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{
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return True;
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}
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else
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{
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return False;
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}
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}
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/*************************************************************************\
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* Function to handle session support via url or cookies *
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\*************************************************************************/
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function link($url = '', $extravars = '')
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{
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global $phpgw, $phpgw_info, $usercookie, $kp3, $PHP_SELF;
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/* Fix problems when PHP_SELF if used as the param */
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if ($url == $PHP_SELF)
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{
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$url = '';
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}
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if (! $kp3)
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{
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$kp3 = $phpgw_info['user']['kp3'];
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}
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// Explicit hack to work around problems with php running as CGI on windows
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// please let us know if this doesn't work for you!
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if (! $url && (PHP_OS == 'Windows' || PHP_OS == 'OS/2' || PHP_OS == 'WIN32' || PHP_OS == 'WIN16'))
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{
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$exe = strpos($PHP_SELF,'php.exe');
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if ($exe != false) {
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$exe += 7; // strlen('php.exe')
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$url_root = split ('/', $phpgw_info['server']['webserver_url']);
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$url = (strlen($url_root[0])? $url_root[0].'//':'') . $url_root[2];
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$url .= substr($PHP_SELF,$exe,strlen($PHP_SELF)-$exe);
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}
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}
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if (! $url)
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{
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$url_root = split ('/', $phpgw_info['server']['webserver_url']);
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/* Some hosting providers have their paths screwy.
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If the value from $PHP_SELF is not what you expect, you can use this to patch it
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It will need to be adjusted to your specific problem tho.
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*/
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//$patched_php_self = str_replace('/php4/php/phpgroupware', '/phpgroupware', $PHP_SELF);
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$patched_php_self = $PHP_SELF;
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$url = (strlen($url_root[0])? $url_root[0].'//':'') . $url_root[2] . $patched_php_self;
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}
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if (isset($phpgw_info['server']['usecookies']) && $phpgw_info['server']['usecookies'])
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{
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if ($extravars)
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{
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$url .= '?' . $extravars;
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}
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}
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else
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{
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$url .= '?sessionid=' . $phpgw_info['user']['sessionid'];
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$url .= '&kp3=' . $kp3;
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$url .= '&domain=' . $phpgw_info['user']['domain'];
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// This doesn't belong in the API.
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// Its up to the app to pass this value. (jengo)
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// Putting it into the app requires a massive number of updates in email app.
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// Until that happens this needs to stay here (seek3r)
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if ($phpgw_info['flags']['newsmode'])
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{
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$url .= '&newsmode=on';
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}
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if ($extravars)
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{
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$url .= "&$extravars";
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}
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}
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$url = str_replace('/?', '/index.php?', $url);
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$webserver_url_count = strlen($phpgw_info['server']['webserver_url']);
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$slash_check = strtolower(substr($url ,0,1));
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if (substr($url ,0,$webserver_url_count) != $phpgw_info['server']['webserver_url'])
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{
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$app = $phpgw_info['flags']['currentapp'];
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if ($slash_check == '/')
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{
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$url = $phpgw_info['server']['webserver_url'] . $url;
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}
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elseif ($app == 'home' || $app == 'logout' || $app == 'login')
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{
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$url = $phpgw_info['server']['webserver_url'].'/'.$url;
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}
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else
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{
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$url = $phpgw_info['server']['webserver_url'].'/'.$app.'/'.$url;
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}
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}
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return $url;
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}
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}
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?>
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