LDAPAccountManager/lam/lib/ldap.inc

226 lines
5.8 KiB
PHP
Raw Normal View History

<?php
/*
$Id$
2009-10-27 18:47:12 +00:00
This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
Copyright (C) 2003 - 2016 Roland Gruber
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
2004-05-31 14:04:00 +00:00
/**
* ldap.inc provides basic functions to connect to the OpenLDAP server.
*
* @package LDAP
* @author Roland Gruber
*/
2003-04-27 16:29:53 +00:00
2004-05-31 14:04:00 +00:00
/** Access to configuration data */
2003-04-23 19:13:55 +00:00
include_once("config.inc");
2004-05-31 14:04:00 +00:00
/**
* Converts a HEX string to a binary value
*
* @param string $value HEX string
* @return binary result binary
*/
function convertHex2bin($value) {
return pack("H*", $value);
}
2003-08-08 15:35:59 +00:00
2003-10-04 13:26:37 +00:00
2004-05-31 14:04:00 +00:00
/**
* Ldap manages connection to LDAP and includes several helper functions.
*
* @package LDAP
*/
class Ldap{
2004-05-31 14:04:00 +00:00
/** Object of Config to access preferences */
2007-07-08 11:33:31 +00:00
private $conf;
2003-07-30 20:46:07 +00:00
2004-05-31 14:04:00 +00:00
/** Server handle */
2007-07-08 11:33:31 +00:00
private $server;
2015-06-24 17:40:20 +00:00
2012-07-15 12:05:47 +00:00
/** LDAP connection established */
2007-07-21 08:27:13 +00:00
private $is_connected = false;
2003-07-30 20:46:07 +00:00
2004-05-31 14:04:00 +00:00
/** LDAP username used for bind */
2007-07-08 11:33:31 +00:00
private $username;
2004-05-31 14:04:00 +00:00
/** LDAP password used for bind */
2007-07-08 11:33:31 +00:00
private $password;
2003-07-30 20:46:07 +00:00
2004-05-31 14:04:00 +00:00
/**
2012-07-15 12:05:47 +00:00
* Creates a new LDAP object.
2015-06-24 17:40:20 +00:00
*
2004-05-31 14:04:00 +00:00
* @param object $config an object of class Config
*/
2007-12-28 16:08:56 +00:00
function __construct($config) {
2013-07-21 11:34:31 +00:00
if (is_object($config)) {
$this->conf = $config;
}
else {
return false;
}
2003-07-30 20:46:07 +00:00
return true;
}
2004-05-31 14:04:00 +00:00
/**
* Connects to the server using the given username and password
*
* @param string $user user name
* @param string $passwd password
2009-03-07 18:15:27 +00:00
* @param boolean $allowAnonymous specifies if anonymous binds are allowed
2015-06-12 18:28:25 +00:00
* @return mixed if connect succeeds the 0 is returned, else false or error number
2004-05-31 14:04:00 +00:00
*/
2009-03-07 18:15:27 +00:00
function connect($user, $passwd, $allowAnonymous=false) {
2003-07-30 20:46:07 +00:00
// close any prior connection
@$this->close();
// do not allow anonymous bind
2009-03-07 18:15:27 +00:00
if (!$allowAnonymous && ((!$user)||($user == "")||(!$passwd))) {
2003-07-30 20:46:07 +00:00
return false;
}
// save password und username encrypted
2004-01-10 11:08:10 +00:00
$this->encrypt_login($user, $passwd);
$this->server = @ldap_connect($this->conf->get_ServerURL());
2003-07-30 20:46:07 +00:00
if ($this->server) {
// use LDAPv3
ldap_set_option($this->server, LDAP_OPT_PROTOCOL_VERSION, 3);
// referral following
$followReferrals = ($this->conf->getFollowReferrals() === 'true') ? 1 : 0;
ldap_set_option($this->server,LDAP_OPT_REFERRALS, $followReferrals);
2009-05-03 17:31:39 +00:00
// start TLS if specified
$useTLS = $this->conf->getUseTLS();
if (isset($useTLS) && ($useTLS == "yes")) {
@ldap_start_tls($this->server);
2004-05-23 08:16:38 +00:00
if (ldap_errno($this->server) != 0) {
2011-10-24 15:24:35 +00:00
logNewMessage(LOG_ERR, 'Unable to start TLS encryption. Please check if your server certificate is valid and if the LDAP server supports TLS at all.');
2009-05-03 17:31:39 +00:00
return ldap_errno($this->server);
}
}
2003-07-30 20:46:07 +00:00
$bind = @ldap_bind($this->server, $user, $passwd);
if ($bind) {
2006-02-02 19:56:41 +00:00
$return = ldap_errno($this->server);
2009-11-03 20:57:53 +00:00
$this->is_connected = true;
2003-12-03 23:03:10 +00:00
// return success number
2006-02-02 19:56:41 +00:00
return $return;
2003-07-30 20:46:07 +00:00
}
2003-12-03 23:03:10 +00:00
// return error number
else return ldap_errno($this->server);
2003-07-30 20:46:07 +00:00
}
2003-12-03 23:03:10 +00:00
else return false;
2003-07-30 20:46:07 +00:00
}
2004-05-31 14:04:00 +00:00
/** Closes connection to server */
2003-07-26 12:37:31 +00:00
function close() {
2012-02-05 10:38:59 +00:00
if ($this->server != null) {
@ldap_close($this->server);
}
2003-06-08 18:58:01 +00:00
}
2003-07-26 12:37:31 +00:00
2004-05-31 14:04:00 +00:00
/**
* Returns the LDAP connection handle
*
* @return object connection handle
*/
2003-07-26 12:37:31 +00:00
function server() {
2007-07-21 08:27:13 +00:00
if (!$this->is_connected) {
$data = $this->decrypt_login();
$this->connect($data[0], $data[1]);
$this->is_connected = true;
}
2003-07-26 12:37:31 +00:00
return $this->server;
}
2004-05-31 14:04:00 +00:00
/** Closes connection to LDAP server before serialization */
2003-07-26 12:37:31 +00:00
function __sleep() {
$this->close();
// define which attributes to save
2013-07-21 11:34:31 +00:00
return array("conf", "username", "password");
2003-07-26 12:37:31 +00:00
}
2004-05-31 14:04:00 +00:00
/** Reconnects to LDAP server when deserialized */
2003-07-26 12:37:31 +00:00
function __wakeup() {
2007-07-21 08:27:13 +00:00
$this->is_connected = false;
2013-01-28 21:14:26 +00:00
// delete PDF files and images which are older than 15 min
2010-04-01 18:12:07 +00:00
$tmpDir = dirname(__FILE__) . '/../tmp/';
$time = time();
$dir = @opendir($tmpDir);
$file = @readdir($dir);
while ($file) {
2013-01-28 21:14:26 +00:00
$path = $tmpDir . $file;
if (($file != '.') && ($file != '..') && ($file != '.htaccess') && !is_dir($path)) {
if ($time - filemtime($path) > 900) {
2010-04-01 18:12:07 +00:00
@unlink($path);
}
}
2010-04-01 18:12:07 +00:00
$file = @readdir($dir);
}
2010-04-01 18:12:07 +00:00
@closedir($dir);
2012-01-26 20:02:38 +00:00
// clean internal files that are older than 24 hours
$tmpDir = dirname(__FILE__) . '/../tmp/internal/';
$time = time();
$dir = @opendir($tmpDir);
$file = @readdir($dir);
while ($file) {
if ((substr($file, -4) == '.tmp')) {
$path = $tmpDir . $file;
if ($time - filemtime($path) > (3600 * 24)) {
@unlink($path);
}
}
$file = @readdir($dir);
}
@closedir($dir);
2003-07-26 12:37:31 +00:00
}
2004-05-31 14:04:00 +00:00
/**
* Encrypts username and password
*
* @param string $username LDAP user name
* @param string $password LDAP password
*/
2004-01-10 11:08:10 +00:00
function encrypt_login($username, $password) {
2003-07-02 17:58:55 +00:00
// encrypt username and password
$this->username = base64_encode(lamEncrypt($username));
$this->password = base64_encode(lamEncrypt($password));
2003-07-02 17:58:55 +00:00
}
2004-05-31 14:04:00 +00:00
/**
* Decrypts username and password
*
* @return array array(user name, password)
*/
2004-01-10 11:08:10 +00:00
function decrypt_login() {
2003-07-02 17:58:55 +00:00
// decrypt username and password
$username = lamDecrypt(base64_decode($this->username));
$password = lamDecrypt(base64_decode($this->password));
2003-07-02 17:58:55 +00:00
$ret = array($username, $password);
return $ret;
}
2004-05-31 14:04:00 +00:00
/** Closes connection to LDAP server and deletes encrypted username/password */
2003-07-02 17:58:55 +00:00
function destroy() {
$this->close();
$this->username="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
$this->password="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
}
2003-07-26 12:37:31 +00:00
}
?>