224 lines
7.3 KiB
PHP
224 lines
7.3 KiB
PHP
<?php
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/*
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$Id$
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This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam)
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Copyright (C) 2003 Roland Gruber
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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// ldap.php provides basic functions to connect to the OpenLDAP server and get lists of users and groups.
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include_once("../config/config.php");
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class Ldap{
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// object of Config to access preferences
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var $conf;
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// server handle
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var $server;
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// LDAP username and password used for bind
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var $username;
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var $password;
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// Arrays that contain LDAP attributes and their descriptions which are translated
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var $ldapUserAttributes;
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var $ldapGroupAttributes;
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var $ldapHostAttributes;
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// constructor
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// $config has to be an object of Config (../config/config.php)
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function Ldap($config) {
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if (is_object($config)) $this->conf = $config;
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else { echo _("Ldap->Ldap failed!"); exit;}
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// construct arrays with known LDAP attributes
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$this->ldapUserAttributes = array (
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"uid" => _("User ID"),
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"uidNumber" => _("UID Number"),
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"gidNumber" => _("GID Number"),
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"cn" => _("User Name"),
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"host" => _("Allowed Hosts"),
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"givenName" => _("First Name"),
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"sn" => _("Last Name"),
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"homeDirectory" => _("Home Directory"),
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"loginShell" => _("Login Shell"),
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"mail" => _("E-Mail"),
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"gecos" => _("description")
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);
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$this->ldapGroupAttributes = array (
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"cn" => _("Group Name"),
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"gidNumber" => _("GID Number"),
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"memberUID" => _("Group Members"),
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"member" => _("Group Member DNs"),
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"description" => _("Group Description")
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);
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$this->ldapHostAttributes = array (
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"uid" => _("Host Username"),
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"cn" => _("Host Name"),
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"rid" => _("RID (Windows UID)"),
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"description" => _("Host Description")
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);
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}
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// returns an array of strings with the DN entries of all users
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// $base is optional and specifies the root from where to search for entries
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function getUsers($base = "") {
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if ($base == "") $base = $this->conf->get_UserSuffix();
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// users have the attribute "posixAccount" or "sambaAccount" and do not end with "$"
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$filter = "(&(|(objectClass=posixAccount) (objectClass=sambaAccount)) (!(uid=*$)))";
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$attrs = array();
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$sr = ldap_search($this->server, $base, $filter, $attrs);
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$info = ldap_get_entries($this->server, $sr);
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$ret = array();
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for ($i = 0; $i < $info["count"]; $i++) $ret[$i] = $info[$i]["dn"];
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ldap_free_result($sr);
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return $ret;
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}
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// connects to the server using the given username and password
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// $base is optional and specifies the root from where to search for entries
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// if connect succeeds the server handle is returned
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function connect($user, $passwd) {
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// close any prior connection
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@$this->close();
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// do not allow anonymous bind
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if ((!$user)||($user == "")) {
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echo _("No username was specified!");
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exit;
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}
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// save password und username encrypted
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$this->encrypt($user, $passwd);
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if ($this->conf->get_SSL() == "True") $this->server = @ldap_connect("ldaps://" . $this->conf->get_Host(), $this->conf->get_Port());
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else $this->server = @ldap_connect("ldap://" . $this->conf->get_Host(), $this->conf->get_Port());
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if ($this->server) {
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// use LDAPv3
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ldap_set_option($this->server, LDAP_OPT_PROTOCOL_VERSION, 3);
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$bind = @ldap_bind($this->server, $user, $passwd);
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if ($bind) {
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// return server handle
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return $this->server;
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}
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}
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}
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/**
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* @brief Populates any given object with the available attributes in the
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* LDAP. The names of the member variables of the object must correspond to
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* the attribute names in the LDAP server.
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*
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* @param in_entry_dn distinguished name of entry in ldap
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* @param in_object input object to populate
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*
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* @return populated object
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*/
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function getEntry ($in_entry_dn, $in_object) {
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// read all variables of given object to $vararray
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$vararray = get_object_vars ($in_object);
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// set attributefilter only to attributes present in given object
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$attributefilter = array();
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foreach (array_keys ($vararray) as $varname)
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$attributefilter[] = $varname;
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// filter doesn't matter (we only read one entry)
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$filter = "(objectClass=*)";
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$resource = ldap_read ($this->server,
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$in_entry_dn, $filter, $attributefilter);
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$entry = ldap_first_entry ($this->server, $resource);
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foreach (array_keys ($vararray) as $varname)
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$in_object->$varname = ldap_get_values ($this->server, $entry, $varname);
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return $in_object;
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}
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// closes connection to server
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function close() {
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ldap_close($this->server);
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}
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// returns the LDAP connection handle
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function server() {
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return $this->server;
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}
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// closes connection to LDAP server before serialization
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function __sleep() {
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$this->close();
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// define which attributes to save
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return array("conf", "username", "password", "ldapUserAttributes", "ldapGroupAttributes", "ldapHostAttributes");
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}
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// reconnects to LDAP server when deserialized
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function __wakeup() {
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$data = $this->decrypt();
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$this->connect($data[0], $data[1]);
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}
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// encrypts username and password
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function encrypt($username, $password) {
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// read key and iv from cookie
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$iv = base64_decode($_COOKIE["IV"]);
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$key = base64_decode($_COOKIE["Key"]);
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// encrypt username and password
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$this->username = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $username, MCRYPT_MODE_ECB, $iv));
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$this->password = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $password, MCRYPT_MODE_ECB, $iv));
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}
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// decrypts username and password
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function decrypt() {
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// read key and iv from cookie
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$iv = base64_decode($_COOKIE["IV"]);
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$key = base64_decode($_COOKIE["Key"]);
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// decrypt username and password
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$username = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($this->username), MCRYPT_MODE_ECB, $iv);
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$password = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, base64_decode($this->password), MCRYPT_MODE_ECB, $iv);
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$ret = array($username, $password);
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return $ret;
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}
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// closes connection to LDAP server and deletes encrypted username/password
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function destroy() {
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$this->close();
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$this->username="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
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$this->password="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
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}
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// returns an array that contains LDAP attribute names and their description
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function attributeUserArray() {
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return $this->ldapUserAttributes;
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}
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// returns an array that contains LDAP attribute names and their description
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function attributeGroupArray() {
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return $this->ldapGroupAttributes;
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}
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// returns an array that contains LDAP attribute names and their description
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function attributeHostArray() {
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return $this->ldapHostAttributes;
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}
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}
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?>
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