mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-17 21:43:11 +01:00
322 lines
8.9 KiB
PHP
322 lines
8.9 KiB
PHP
<?php
|
|
/*
|
|
V4.20 22 Feb 2004 (c) 2000-2004 John Lim (jlim@natsoft.com.my). All rights reserved.
|
|
Released under both BSD license and Lesser GPL library license.
|
|
Whenever there is any discrepancy between the two licenses,
|
|
the BSD license will take precedence.
|
|
Made table name configurable - by David Johnson djohnson@inpro.net
|
|
Encryption by Ari Kuorikoski <ari.kuorikoski@finebyte.com>
|
|
|
|
Set tabs to 4 for best viewing.
|
|
|
|
Latest version of ADODB is available at http://php.weblogs.com/adodb
|
|
======================================================================
|
|
|
|
This file provides PHP4 session management using the ADODB database
|
|
wrapper library.
|
|
|
|
Example
|
|
=======
|
|
|
|
GLOBAL $HTTP_SESSION_VARS;
|
|
include('adodb.inc.php');
|
|
#---------------------------------#
|
|
include('adodb-cryptsession.php');
|
|
#---------------------------------#
|
|
session_start();
|
|
session_register('AVAR');
|
|
$HTTP_SESSION_VARS['AVAR'] += 1;
|
|
print "<p>\$HTTP_SESSION_VARS['AVAR']={$HTTP_SESSION_VARS['AVAR']}</p>";
|
|
|
|
|
|
Installation
|
|
============
|
|
1. Create a new database in MySQL or Access "sessions" like
|
|
so:
|
|
|
|
create table sessions (
|
|
SESSKEY char(32) not null,
|
|
EXPIRY int(11) unsigned not null,
|
|
EXPIREREF varchar(64),
|
|
DATA CLOB,
|
|
primary key (sesskey)
|
|
);
|
|
|
|
2. Then define the following parameters. You can either modify
|
|
this file, or define them before this file is included:
|
|
|
|
$ADODB_SESSION_DRIVER='database driver, eg. mysql or ibase';
|
|
$ADODB_SESSION_CONNECT='server to connect to';
|
|
$ADODB_SESSION_USER ='user';
|
|
$ADODB_SESSION_PWD ='password';
|
|
$ADODB_SESSION_DB ='database';
|
|
$ADODB_SESSION_TBL = 'sessions'
|
|
|
|
3. Recommended is PHP 4.0.2 or later. There are documented
|
|
session bugs in earlier versions of PHP.
|
|
|
|
*/
|
|
|
|
|
|
include_once('crypt.inc.php');
|
|
|
|
if (!defined('_ADODB_LAYER')) {
|
|
include (dirname(__FILE__).'/adodb.inc.php');
|
|
}
|
|
|
|
/* if database time and system time is difference is greater than this, then give warning */
|
|
define('ADODB_SESSION_SYNCH_SECS',60);
|
|
|
|
if (!defined('ADODB_SESSION')) {
|
|
|
|
define('ADODB_SESSION',1);
|
|
|
|
GLOBAL $ADODB_SESSION_CONNECT,
|
|
$ADODB_SESSION_DRIVER,
|
|
$ADODB_SESSION_USER,
|
|
$ADODB_SESSION_PWD,
|
|
$ADODB_SESSION_DB,
|
|
$ADODB_SESS_CONN,
|
|
$ADODB_SESS_LIFE,
|
|
$ADODB_SESS_DEBUG,
|
|
$ADODB_SESS_INSERT,
|
|
$ADODB_SESSION_EXPIRE_NOTIFY,
|
|
$ADODB_SESSION_TBL;
|
|
|
|
//$ADODB_SESS_DEBUG = true;
|
|
|
|
/* SET THE FOLLOWING PARAMETERS */
|
|
if (empty($ADODB_SESSION_DRIVER)) {
|
|
$ADODB_SESSION_DRIVER='mysql';
|
|
$ADODB_SESSION_CONNECT='localhost';
|
|
$ADODB_SESSION_USER ='root';
|
|
$ADODB_SESSION_PWD ='';
|
|
$ADODB_SESSION_DB ='xphplens_2';
|
|
}
|
|
|
|
if (empty($ADODB_SESSION_TBL)){
|
|
$ADODB_SESSION_TBL = 'sessions';
|
|
}
|
|
|
|
if (empty($ADODB_SESSION_EXPIRE_NOTIFY)) {
|
|
$ADODB_SESSION_EXPIRE_NOTIFY = false;
|
|
}
|
|
|
|
function ADODB_Session_Key()
|
|
{
|
|
$ADODB_CRYPT_KEY = 'CRYPTED ADODB SESSIONS ROCK!';
|
|
|
|
/* USE THIS FUNCTION TO CREATE THE ENCRYPTION KEY FOR CRYPTED SESSIONS */
|
|
/* Crypt the used key, $ADODB_CRYPT_KEY as key and session_ID as SALT */
|
|
return crypt($ADODB_CRYPT_KEY, session_ID());
|
|
}
|
|
|
|
$ADODB_SESS_LIFE = ini_get('session.gc_maxlifetime');
|
|
if ($ADODB_SESS_LIFE <= 1) {
|
|
// bug in PHP 4.0.3 pl 1 -- how about other versions?
|
|
//print "<h3>Session Error: PHP.INI setting <i>session.gc_maxlifetime</i>not set: $ADODB_SESS_LIFE</h3>";
|
|
$ADODB_SESS_LIFE=1440;
|
|
}
|
|
|
|
function adodb_sess_open($save_path, $session_name)
|
|
{
|
|
GLOBAL $ADODB_SESSION_CONNECT,
|
|
$ADODB_SESSION_DRIVER,
|
|
$ADODB_SESSION_USER,
|
|
$ADODB_SESSION_PWD,
|
|
$ADODB_SESSION_DB,
|
|
$ADODB_SESS_CONN,
|
|
$ADODB_SESS_DEBUG;
|
|
|
|
$ADODB_SESS_INSERT = false;
|
|
|
|
if (isset($ADODB_SESS_CONN)) return true;
|
|
|
|
$ADODB_SESS_CONN = ADONewConnection($ADODB_SESSION_DRIVER);
|
|
if (!empty($ADODB_SESS_DEBUG)) {
|
|
$ADODB_SESS_CONN->debug = true;
|
|
print" conn=$ADODB_SESSION_CONNECT user=$ADODB_SESSION_USER pwd=$ADODB_SESSION_PWD db=$ADODB_SESSION_DB ";
|
|
}
|
|
return $ADODB_SESS_CONN->PConnect($ADODB_SESSION_CONNECT,
|
|
$ADODB_SESSION_USER,$ADODB_SESSION_PWD,$ADODB_SESSION_DB);
|
|
|
|
}
|
|
|
|
function adodb_sess_close()
|
|
{
|
|
global $ADODB_SESS_CONN;
|
|
|
|
if ($ADODB_SESS_CONN) $ADODB_SESS_CONN->Close();
|
|
return true;
|
|
}
|
|
|
|
function adodb_sess_read($key)
|
|
{
|
|
$Crypt = new MD5Crypt;
|
|
global $ADODB_SESS_CONN,$ADODB_SESS_INSERT,$ADODB_SESSION_TBL;
|
|
$rs = $ADODB_SESS_CONN->Execute("SELECT data FROM $ADODB_SESSION_TBL WHERE sesskey = '$key' AND expiry >= " . time());
|
|
if ($rs) {
|
|
if ($rs->EOF) {
|
|
$ADODB_SESS_INSERT = true;
|
|
$v = '';
|
|
} else {
|
|
// Decrypt session data
|
|
$v = rawurldecode($Crypt->Decrypt(reset($rs->fields), ADODB_Session_Key()));
|
|
}
|
|
$rs->Close();
|
|
return $v;
|
|
}
|
|
else $ADODB_SESS_INSERT = true;
|
|
|
|
return '';
|
|
}
|
|
|
|
function adodb_sess_write($key, $val)
|
|
{
|
|
$Crypt = new MD5Crypt;
|
|
global $ADODB_SESS_INSERT,$ADODB_SESS_CONN, $ADODB_SESS_LIFE, $ADODB_SESSION_TBL,$ADODB_SESSION_EXPIRE_NOTIFY;
|
|
|
|
$expiry = time() + $ADODB_SESS_LIFE;
|
|
|
|
// encrypt session data..
|
|
$val = $Crypt->Encrypt(rawurlencode($val), ADODB_Session_Key());
|
|
|
|
$arr = array('sesskey' => $key, 'expiry' => $expiry, 'data' => $val);
|
|
if ($ADODB_SESSION_EXPIRE_NOTIFY) {
|
|
$var = reset($ADODB_SESSION_EXPIRE_NOTIFY);
|
|
global $$var;
|
|
$arr['expireref'] = $$var;
|
|
}
|
|
$rs = $ADODB_SESS_CONN->Replace($ADODB_SESSION_TBL,
|
|
$arr,
|
|
'sesskey',$autoQuote = true);
|
|
|
|
if (!$rs) {
|
|
ADOConnection::outp( '<p>Session Replace: '.$ADODB_SESS_CONN->ErrorMsg().'</p>',false);
|
|
} else {
|
|
// bug in access driver (could be odbc?) means that info is not commited
|
|
// properly unless select statement executed in Win2000
|
|
|
|
if ($ADODB_SESS_CONN->databaseType == 'access') $rs = $ADODB_SESS_CONN->Execute("select sesskey from $ADODB_SESSION_TBL WHERE sesskey='$key'");
|
|
}
|
|
return isset($rs);
|
|
}
|
|
|
|
function adodb_sess_destroy($key)
|
|
{
|
|
global $ADODB_SESS_CONN, $ADODB_SESSION_TBL,$ADODB_SESSION_EXPIRE_NOTIFY;
|
|
|
|
if ($ADODB_SESSION_EXPIRE_NOTIFY) {
|
|
reset($ADODB_SESSION_EXPIRE_NOTIFY);
|
|
$fn = next($ADODB_SESSION_EXPIRE_NOTIFY);
|
|
$savem = $ADODB_SESS_CONN->SetFetchMode(ADODB_FETCH_NUM);
|
|
$rs = $ADODB_SESS_CONN->Execute("SELECT expireref,sesskey FROM $ADODB_SESSION_TBL WHERE sesskey='$key'");
|
|
$ADODB_SESS_CONN->SetFetchMode($savem);
|
|
if ($rs) {
|
|
$ADODB_SESS_CONN->BeginTrans();
|
|
while (!$rs->EOF) {
|
|
$ref = $rs->fields[0];
|
|
$key = $rs->fields[1];
|
|
$fn($ref,$key);
|
|
$del = $ADODB_SESS_CONN->Execute("DELETE FROM $ADODB_SESSION_TBL WHERE sesskey='$key'");
|
|
$rs->MoveNext();
|
|
}
|
|
$ADODB_SESS_CONN->CommitTrans();
|
|
}
|
|
} else {
|
|
$qry = "DELETE FROM $ADODB_SESSION_TBL WHERE sesskey = '$key'";
|
|
$rs = $ADODB_SESS_CONN->Execute($qry);
|
|
}
|
|
return $rs ? true : false;
|
|
}
|
|
|
|
|
|
function adodb_sess_gc($maxlifetime) {
|
|
global $ADODB_SESS_CONN, $ADODB_SESSION_TBL,$ADODB_SESSION_EXPIRE_NOTIFY,$ADODB_SESS_DEBUG;
|
|
|
|
if ($ADODB_SESSION_EXPIRE_NOTIFY) {
|
|
reset($ADODB_SESSION_EXPIRE_NOTIFY);
|
|
$fn = next($ADODB_SESSION_EXPIRE_NOTIFY);
|
|
$savem = $ADODB_SESS_CONN->SetFetchMode(ADODB_FETCH_NUM);
|
|
$t = time();
|
|
$rs = $ADODB_SESS_CONN->Execute("SELECT expireref,sesskey FROM $ADODB_SESSION_TBL WHERE expiry < $t");
|
|
$ADODB_SESS_CONN->SetFetchMode($savem);
|
|
if ($rs) {
|
|
$ADODB_SESS_CONN->BeginTrans();
|
|
while (!$rs->EOF) {
|
|
$ref = $rs->fields[0];
|
|
$key = $rs->fields[1];
|
|
$fn($ref,$key);
|
|
//$del = $ADODB_SESS_CONN->Execute("DELETE FROM $ADODB_SESSION_TBL WHERE sesskey='$key'");
|
|
$rs->MoveNext();
|
|
}
|
|
$rs->Close();
|
|
|
|
$ADODB_SESS_CONN->Execute("DELETE FROM $ADODB_SESSION_TBL WHERE expiry < $t");
|
|
$ADODB_SESS_CONN->CommitTrans();
|
|
}
|
|
} else {
|
|
$qry = "DELETE FROM $ADODB_SESSION_TBL WHERE expiry < " . time();
|
|
$ADODB_SESS_CONN->Execute($qry);
|
|
}
|
|
|
|
// suggested by Cameron, "GaM3R" <gamr@outworld.cx>
|
|
if (defined('ADODB_SESSION_OPTIMIZE'))
|
|
{
|
|
switch( $ADODB_SESSION_DRIVER ) {
|
|
case 'mysql':
|
|
case 'mysqlt':
|
|
$opt_qry = 'OPTIMIZE TABLE '.$ADODB_SESSION_TBL;
|
|
break;
|
|
case 'postgresql':
|
|
case 'postgresql7':
|
|
$opt_qry = 'VACUUM '.$ADODB_SESSION_TBL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($ADODB_SESS_CONN->dataProvider === 'oci8') $sql = 'select TO_CHAR('.($ADODB_SESS_CONN->sysTimeStamp).', \'RRRR-MM-DD HH24:MI:SS\') from '. $ADODB_SESSION_TBL;
|
|
else $sql = 'select '.$ADODB_SESS_CONN->sysTimeStamp.' from '. $ADODB_SESSION_TBL;
|
|
|
|
$rs =& $ADODB_SESS_CONN->SelectLimit($sql,1);
|
|
if ($rs && !$rs->EOF) {
|
|
|
|
$dbts = reset($rs->fields);
|
|
$rs->Close();
|
|
$dbt = $ADODB_SESS_CONN->UnixTimeStamp($dbts);
|
|
$t = time();
|
|
if (abs($dbt - $t) >= ADODB_SESSION_SYNCH_SECS) {
|
|
global $HTTP_SERVER_VARS;
|
|
$msg =
|
|
__FILE__.": Server time for webserver {$HTTP_SERVER_VARS['HTTP_HOST']} not in synch with database: database=$dbt ($dbts), webserver=$t (diff=".(abs($dbt-$t)/3600)." hrs)";
|
|
error_log($msg);
|
|
if ($ADODB_SESS_DEBUG) ADOConnection::outp("<p>$msg</p>");
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
session_module_name('user');
|
|
session_set_save_handler(
|
|
"adodb_sess_open",
|
|
"adodb_sess_close",
|
|
"adodb_sess_read",
|
|
"adodb_sess_write",
|
|
"adodb_sess_destroy",
|
|
"adodb_sess_gc");
|
|
}
|
|
|
|
/* TEST SCRIPT -- UNCOMMENT */
|
|
/*
|
|
if (0) {
|
|
GLOBAL $HTTP_SESSION_VARS;
|
|
|
|
session_start();
|
|
session_register('AVAR');
|
|
$HTTP_SESSION_VARS['AVAR'] += 1;
|
|
print "<p>\$HTTP_SESSION_VARS['AVAR']={$HTTP_SESSION_VARS['AVAR']}</p>";
|
|
}
|
|
*/
|
|
?>
|