413 lines
12 KiB
PHP
413 lines
12 KiB
PHP
<?php
|
|
/*
|
|
$Id$
|
|
|
|
This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam)
|
|
Copyright (C) 2003 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
|
|
|
|
*/
|
|
|
|
// ldap.inc provides basic functions to connect to the OpenLDAP server.
|
|
|
|
include_once("config.inc");
|
|
|
|
|
|
// returns the hash value of a plain text password
|
|
// the hash algorithm depends on the configuration file
|
|
// $password: the password string
|
|
// $enabled: marks the hash as enabled/disabled (e.g. by prefixing "!")
|
|
function pwd_hash($password, $enabled=true) {
|
|
// check for empty password
|
|
if (! $password || ($password == "")) {
|
|
if ($enabled) return "";
|
|
else return "!";
|
|
}
|
|
// hash password with algorithm from config file
|
|
$hash = "";
|
|
switch ($_SESSION['config']->get_pwdhash()) {
|
|
case 'CRYPT':
|
|
$hash = "{CRYPT}" . crypt($password);
|
|
break;
|
|
case 'MD5':
|
|
$hash = "{MD5}" . base64_encode(mHash(MHASH_MD5, $password));
|
|
break;
|
|
case 'SMD5':
|
|
$salt = mhash_keygen_s2k(MHASH_MD5, $password, substr(pack("h*", md5(mt_rand())), 0, 8), 4);
|
|
$hash = base64_encode(mHash(MHASH_SMD5, $password . $salt) . $salt);
|
|
$hash = "{SMD5}" . $hash;
|
|
break;
|
|
case 'SHA':
|
|
$hash = base64_encode(mHash(MHASH_SHA1, $password));
|
|
$hash = "{SHA}" . $hash;
|
|
break;
|
|
case 'SSHA':
|
|
$salt = mhash_keygen_s2k(MHASH_SHA1, $password, substr(pack("h*", md5(mt_rand())), 0, 8), 4);
|
|
$hash = base64_encode(mHash(MHASH_SHA1, $password . $salt) . $salt);
|
|
$hash = "{SSHA}" . $hash;
|
|
break;
|
|
case 'PLAIN':
|
|
$hash = $password;
|
|
break;
|
|
// use SSHA if the setting is invalid
|
|
default:
|
|
$salt = mhash_keygen_s2k(MHASH_SHA1, $password, substr(pack("h*", md5(mt_rand())), 0, 8), 4);
|
|
$hash = base64_encode(mHash(MHASH_SHA1, $password . $salt) . $salt);
|
|
$hash = "{SSHA}" . $hash;
|
|
break;
|
|
}
|
|
// enable/disable password
|
|
if (! $enabled) return "!" . $hash;
|
|
else return $hash;
|
|
}
|
|
|
|
|
|
// marks an password hash as enabled
|
|
// and returns the new hash string
|
|
// hash: hash value to enable
|
|
function pwd_enable($hash) {
|
|
// check if password is disabled
|
|
if ((substr($hash, 0, 1) == "!") || ((substr($hash, 0, 1) == "*"))) {
|
|
return substr($hash, 1, strlen($hash));
|
|
}
|
|
else {
|
|
return $hash;
|
|
}
|
|
}
|
|
|
|
// marks an password hash as disabled
|
|
// and returns the new hash string
|
|
// hash: hash value to disable
|
|
function pwd_disable($hash) {
|
|
// check if already disabled
|
|
if ((substr($hash, 0, 1) == "!") || ((substr($hash, 0, 1) == "*"))) {
|
|
return $hash;
|
|
}
|
|
else {
|
|
return "!" . $hash;
|
|
}
|
|
}
|
|
|
|
// checks if a password hash is enabled/disabled
|
|
// returns true if the password is marked as enabled
|
|
function pwd_is_enabled($hash) {
|
|
// disabled passwords have a "!" or "*" at the beginning
|
|
if ((substr($hash, 0, 1) == "!") || ((substr($hash, 0, 1) == "*"))) return false;
|
|
else return true;
|
|
}
|
|
|
|
|
|
// manages connection to LDAP and several helper functions
|
|
class Ldap{
|
|
|
|
// object of Config to access preferences
|
|
var $conf;
|
|
|
|
// server handle
|
|
var $server;
|
|
|
|
// LDAP username and password used for bind
|
|
var $username;
|
|
var $password;
|
|
|
|
// Arrays that contain LDAP attributes and their descriptions which are translated
|
|
var $ldapUserAttributes;
|
|
var $ldapGroupAttributes;
|
|
var $ldapHostAttributes;
|
|
|
|
// constructor
|
|
// $config: an object of Config (../config/config.php)
|
|
function Ldap($config) {
|
|
setlanguage();
|
|
if (is_object($config)) $this->conf = $config;
|
|
else return false;
|
|
// construct arrays with known LDAP attributes
|
|
$this->ldapUserAttributes = array (
|
|
"uid" => _("User ID"),
|
|
"uidnumber" => _("UID number"),
|
|
"gidnumber" => _("GID number"),
|
|
"cn" => _("Username"),
|
|
"host" => _("Allowed hosts"),
|
|
"givenname" => _("First name"),
|
|
"sn" => _("Last name"),
|
|
"homedirectory" => _("Home directory"),
|
|
"loginshell" => _("Login shell"),
|
|
"mail" => _("E-Mail"),
|
|
"gecos" => _("Description")
|
|
);
|
|
$this->ldapGroupAttributes = array (
|
|
"cn" => _("Group name"),
|
|
"gidnumber" => _("GID number"),
|
|
"memberuid" => _("Group members"),
|
|
"member" => _("Group member DNs"),
|
|
"description" => _("Group description")
|
|
);
|
|
$this->ldapHostAttributes = array (
|
|
"uid" => _("Host username"),
|
|
"cn" => _("Host name"),
|
|
"rid" => _("RID (Windows UID)"),
|
|
"description" => _("Host description"),
|
|
"uidnumber" => _("UID number"),
|
|
"gidnumber" => _("GID number")
|
|
);
|
|
return true;
|
|
}
|
|
|
|
// connects to the server using the given username and password
|
|
// if connect succeeds the server handle is returned
|
|
// $user: user name
|
|
// $passwd: password
|
|
function connect($user, $passwd) {
|
|
// close any prior connection
|
|
@$this->close();
|
|
// do not allow anonymous bind
|
|
if ((!$user)||($user == "")||(!$passwd)) {
|
|
return false;
|
|
}
|
|
// save password und username encrypted
|
|
$this->encrypt($user, $passwd);
|
|
$this->server = @ldap_connect($this->conf->get_ServerURL());
|
|
if ($this->server) {
|
|
// use LDAPv3
|
|
ldap_set_option($this->server, LDAP_OPT_PROTOCOL_VERSION, 3);
|
|
// start TLS if possible
|
|
if (function_exists('ldap_start_tls')) {
|
|
@ldap_start_tls($this->server);
|
|
// connect without TLS if it failed
|
|
if (ldap_errno($this->server) > 0) {
|
|
@ldap_close($this->server);
|
|
$this->server = @ldap_connect($this->conf->get_ServerURL());
|
|
ldap_set_option($this->server, LDAP_OPT_PROTOCOL_VERSION, 3);
|
|
}
|
|
}
|
|
$bind = @ldap_bind($this->server, $user, $passwd);
|
|
if ($bind) {
|
|
// return server handle
|
|
return $this->server;
|
|
}
|
|
}
|
|
}
|
|
|
|
// closes connection to server
|
|
function close() {
|
|
@ldap_close($this->server);
|
|
}
|
|
|
|
// searches LDAP for a specific user name
|
|
// and returns its DN entry
|
|
// $name: user name
|
|
function search_username($name) {
|
|
$filter = "(uid=$name)";
|
|
$attrs = array();
|
|
$sr = @ldap_search($this->server, $this->conf->get_UserSuffix(), $filter, $attrs);
|
|
if ($sr) {
|
|
$info = ldap_get_entries($this->server, $sr);
|
|
// return only first DN entry
|
|
$ret = $info[0]["dn"];
|
|
ldap_free_result($sr);
|
|
return $ret;
|
|
}
|
|
}
|
|
|
|
// returns an array with all organizational units under the given suffix
|
|
// $suffix: search suffix
|
|
function search_units($suffix) {
|
|
$ret = array();
|
|
$sr = @ldap_search($_SESSION["ldap"]->server(), $suffix, "objectClass=organizationalunit", array("DN"));
|
|
if ($sr) {
|
|
$units = ldap_get_entries($_SESSION["ldap"]->server, $sr);
|
|
// extract Dns
|
|
for ($i = 0; $i < sizeof($units); $i++) {
|
|
if ($units[$i]['dn']) $ret[] = $units[$i]['dn'];
|
|
}
|
|
}
|
|
// add root suffix if needed
|
|
$found = false;
|
|
for ($i = 0; $i < sizeof($ret); $i++) { // search suffix case-intensitive
|
|
if (strtolower($suffix) == strtolower($ret[$i])) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!$found) {
|
|
$ret[] = $suffix;
|
|
}
|
|
usort($ret, array($this,"cmp_array"));
|
|
return $ret;
|
|
}
|
|
|
|
// returns an array with all Samba 3 domain entries under the given suffix
|
|
// $suffix: search suffix
|
|
function search_domains($suffix) {
|
|
$ret = array();
|
|
$attr = array("DN", "sambaDomainName", "sambaSID", "sambaNextRid", "sambaNextGroupRid",
|
|
"sambaNextUserRid", "sambaAlgorithmicRidBase");
|
|
$sr = @ldap_search($_SESSION["ldap"]->server(), $suffix, "objectClass=sambaDomain", $attr);
|
|
if ($sr) {
|
|
$units = ldap_get_entries($_SESSION["ldap"]->server, $sr);
|
|
// delete count entry
|
|
array_shift($units);
|
|
// extract attributes
|
|
for ($i = 0; $i < sizeof($units); $i++) {
|
|
$ret[$i] = new samba3domain();
|
|
$ret[$i]->dn = $units[$i]['dn'];
|
|
$ret[$i]->name = $units[$i]['sambadomainname'][0];
|
|
$ret[$i]->SID = $units[$i]['sambasid'][0];
|
|
$ret[$i]->nextRID = $units[$i]['sambanextrid'][0];
|
|
$ret[$i]->nextGroupRID = $units[$i]['sambanextgrouprid'][0];
|
|
$ret[$i]->nextUserRID = $units[$i]['sambanextuserrid'][0];
|
|
if (isset($units[$i]['sambaalgorithmicridbase'][0])) $ret[$i]->RIDbase = $units[$i]['sambaalgorithmicridbase'][0];
|
|
}
|
|
// sort array by domain name
|
|
usort($ret, array($this,"cmp_domain"));
|
|
}
|
|
return $ret;
|
|
}
|
|
|
|
// returns the LDAP connection handle
|
|
function server() {
|
|
return $this->server;
|
|
}
|
|
|
|
// closes connection to LDAP server before serialization
|
|
function __sleep() {
|
|
$this->close();
|
|
// define which attributes to save
|
|
return array("conf", "username", "password", "ldapUserAttributes", "ldapGroupAttributes", "ldapHostAttributes");
|
|
}
|
|
|
|
// reconnects to LDAP server when deserialized
|
|
function __wakeup() {
|
|
$data = $this->decrypt();
|
|
$this->connect($data[0], $data[1]);
|
|
}
|
|
|
|
// encrypts username and password
|
|
// $username: LDAP user name
|
|
// $password: LDAP password
|
|
function encrypt($username, $password) {
|
|
// read key and iv from cookie
|
|
$iv = base64_decode($_COOKIE["IV"]);
|
|
$key = base64_decode($_COOKIE["Key"]);
|
|
// encrypt username and password
|
|
$this->username = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $username, MCRYPT_MODE_ECB, $iv));
|
|
$this->password = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $password, MCRYPT_MODE_ECB, $iv));
|
|
}
|
|
|
|
// decrypts username and password
|
|
// returns an array
|
|
// return[0]: user name
|
|
// return[1]: password
|
|
function decrypt() {
|
|
// read key and iv from cookie
|
|
$iv = base64_decode($_COOKIE["IV"]);
|
|
$key = base64_decode($_COOKIE["Key"]);
|
|
// decrypt username and password
|
|
$username = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($this->username), MCRYPT_MODE_ECB, $iv);
|
|
$password = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($this->password), MCRYPT_MODE_ECB, $iv);
|
|
$ret = array($username, $password);
|
|
$ret[0] = str_replace(chr(00), "", $ret[0]);
|
|
$ret[1] = str_replace(chr(00), "", $ret[1]);
|
|
return $ret;
|
|
}
|
|
|
|
// closes connection to LDAP server and deletes encrypted username/password
|
|
function destroy() {
|
|
$this->close();
|
|
$this->username="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
|
|
$this->password="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
|
|
}
|
|
|
|
// returns an array that contains LDAP attribute names and their description
|
|
function attributeUserArray() {
|
|
return $this->ldapUserAttributes;
|
|
}
|
|
|
|
// returns an array that contains LDAP attribute names and their description
|
|
function attributeGroupArray() {
|
|
return $this->ldapGroupAttributes;
|
|
}
|
|
|
|
// returns an array that contains LDAP attribute names and their description
|
|
function attributeHostArray() {
|
|
return $this->ldapHostAttributes;
|
|
}
|
|
|
|
|
|
// helper function to sort the unit DNs
|
|
function cmp_array($a, $b) {
|
|
// split DNs
|
|
$array_a = explode(",", $a);
|
|
$array_b = explode(",", $b);
|
|
$len_a = sizeof($array_a);
|
|
$len_b = sizeof($array_b);
|
|
// check how many parts to compare
|
|
$len = min($len_a, $len_b);
|
|
// compare from last part on
|
|
for ($i = 0; $i < $len; $i++) {
|
|
// get parts to compare
|
|
$part_a = strtolower($array_a[$len_a - $i - 1]);
|
|
$part_b = strtolower($array_b[$len_b - $i - 1]);
|
|
// compare parts
|
|
if ($part_a == $part_b) { // part is identical
|
|
if ($i == ($len - 1)) {
|
|
if ($len_a > $len_b) return 1;
|
|
elseif ($len_a < $len_b) return -1;
|
|
else return 0; // DNs are identical
|
|
}
|
|
}
|
|
elseif ($part_a == max($part_a, $part_b)) return 1;
|
|
else return -1;
|
|
}
|
|
}
|
|
|
|
// helper function to sort the domains
|
|
function cmp_domain($a, $b) {
|
|
if ($a->name == $b->name) return 0;
|
|
elseif ($a->name == max($a->name, $b->name)) return 1;
|
|
else return -1;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
// represents a Samba 3 domain entry
|
|
class samba3domain {
|
|
|
|
// DN
|
|
var $dn;
|
|
|
|
// domain name
|
|
var $name;
|
|
|
|
// domain SID
|
|
var $SID;
|
|
|
|
// next RID
|
|
var $nextRID;
|
|
|
|
// next user RID
|
|
var $nextUserRID;
|
|
|
|
// next group RID
|
|
var $nextGroupRID;
|
|
|
|
// RID base to calculate RIDs, default 1000
|
|
var $RIDbase=1000;
|
|
}
|
|
|
|
?>
|