egroupware_official/setup/inc/class.setup_cmd_ldap.inc.php

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<?php
/**
* eGgroupWare setup - test or create the ldap connection and hierarchy
*
* @link http://www.egroupware.org
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @package setup
* @copyright (c) 2007 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
/**
* setup command: test or create the ldap connection and hierarchy
*/
class setup_cmd_ldap extends setup_cmd
{
/**
* Instance of ldap object
*
* @var ldap
*/
private $test_ldap;
/**
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* Constructor
*
* @param string/array $domain domain-name to customize the defaults or array with all parameters
* @param string $ldap_type db-type (mysql, pgsql, ...)
* @param string $ldap_host=null
* @param string $ldap_suffix=null base of the whole ldap install, default "dc=local"
* @param string $ldap_admin=null root-dn needed to create new entries in the suffix
* @param string $ldap_admin_pw=null
* @param string $ldap_base=null base of the instance, default "o=$domain,$suffix"
* @param string $ldap_root=null root-dn used for the instance, default "cn=admin,$base"
* @param string $ldap_root_pw=null
* @param string $ldap_context=null ou for accounts, default "ou=accounts,$base"
* @param string $ldap_search_filter=null search-filter for accounts, default "(uid=%user)"
* @param string $ldap_context_group=null ou for groups, default "ou=groups,$base"
* @param string $sub_command='create_ldap' 'create_ldap', 'test_ldap', 'test_ldap_root'
*/
function __construct($domain,$ldap_host=null,$ldap_suffix=null,$ldap_admin=null,$ldap_admin_pw=null,
$ldap_base=null,$ldap_root=null,$ldap_root_pw=null,$ldap_context=null,$ldap_search_filter=null,
$ldap_context_group=null,$sub_command='create_ldap')
{
if (!is_array($domain))
{
$data = array(
'domain' => $domain,
'ldap_host' => $ldap_host,
'ldap_suffix' => $ldap_suffix,
'ldap_admin' => $ldap_admin,
'ldap_admin_pw' => $ldap_admin_pw,
'ldap_base' => $ldap_base,
'ldap_root' => $ldap_root,
'ldap_root_pw' => $ldap_root_pw,
'ldap_context' => $ldap_context,
'ldap_search_filter' => $ldap_search_filter,
'ldap_context_group' => $ldap_context_group,
'sub_command' => $sub_command
);
}
//echo __CLASS__.'::__construct()'; _debug_array($domain);
admin_cmd::__construct($domain);
}
/**
* test or create database
*
* @param boolean $check_only=false only run the checks (and throw the exceptions), but not the command itself
* @return string serialized $GLOBALS defined in the header.inc.php
* @throws Exception(lang('Wrong credentials to access the header.inc.php file!'),2);
* @throws Exception('header.inc.php not found!');
*/
protected function exec($check_only=false)
{
if (!empty($this->domain) && !preg_match('/^([a-z0-9_-]+\.)*[a-z0-9]+/i',$this->domain))
{
throw new egw_exception_wrong_userinput(lang("'%1' is no valid domain name!",$this->domain));
}
if ($this->remote_id && $check_only) return true; // further checks can only done locally
$this->_merge_defaults();
//_debug_array($this->as_array());
try {
switch($this->sub_command)
{
case 'test_ldap_root':
$msg = $this->connect($this->ldap_admin,$this->ldap_admin_pw);
break;
case 'test_ldap':
$msg = $this->connect();
break;
case 'create_ldap':
default:
$msg = $this->create();
break;
}
}
catch (Exception $e) {
// we catch the exception to properly restore the db
}
$this->restore_db();
if ($e)
{
throw $e;
}
return $msg;
}
/**
* Connect to ldap server
*
* @param string $dn=null default $this->ldap_root
* @param string $pw=null default $this->ldap_root_pw
* @throws egw_exception_wrong_userinput Can not connect to ldap ...
*/
private function connect($dn=null,$pw=null)
{
if (is_null($dn)) $dn = $this->ldap_root;
if (is_null($pw)) $pw = $this->ldap_root_pw;
if (!$pw) // ldap::ldapConnect use the current eGW's pw otherwise
{
throw new egw_exception_wrong_userinput(lang('You need to specify a password!'));
}
$this->test_ldap = new ldap();
$error_rep = error_reporting();
//error_reporting($error_rep & ~E_WARNING); // switch warnings of, in case they are on
ob_start();
$ds = $this->test_ldap->ldapConnect($this->ldap_host,$dn,$pw);
ob_end_clean();
error_reporting($error_rep);
if (!$ds)
{
throw new egw_exception_wrong_userinput(lang('Can not connect to LDAP server on host %1 using DN %2!',
$this->ldap_host,$dn).($this->test_ldap->ds ? ' ('.ldap_error($this->test_ldap->ds).')' : ''));
}
return lang('Successful connected to LDAP server on %1 using DN %2.',$this->ldap_host,$dn);
}
/**
* Check and if does not yet exist create the new database and user
*
* The check will fail if the database exists, but already contains tables
*
* @return string with success message
* @throws egw_exception_wrong_userinput
*/
private function create()
{
$this->connect($this->ldap_admin,$this->ldap_admin_pw);
foreach(array(
$this->ldap_base => array(),
$this->ldap_context => array(),
$this->ldap_context_group => array(),
$this->ldap_root => array('userPassword' => '{crypt}'.crypt($this->ldap_root_pw)),
) as $dn => $extra)
{
if (!$this->_create_node($dn,$extra,$check_only) && $dn == $this->ldap_root)
{
// ldap_root already existed, lets check the pw is correct
$this->connect();
}
}
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return lang('Successful connected to LDAP server on %1 and created/checked required structur %2.',
$this->ldap_host,$this->ldap_base);
}
/**
* array with objectclasses for the objects we can create
*
* @var array of name => objectClass pairs (or array with multiple)
*/
static $requiredObjectclasses = array(
'o' => 'organization',
'ou' => 'organizationalUnit',
'cn' => array('namedObject','simpleSecurityObject'),
'dc' => array('organization','dcObject'),
);
/**
* Create a new node in the ldap tree
*
* @param string $dn dn to create, eg. "cn=admin,dc=local"
* @param array $extra=array() extra attributes to set
* @return boolean true if the node was create, false if it was already there
* @throws egw_exception_wrong_userinput
*/
private function _create_node($dn,$extra=array())
{
//echo "<p>_create_node($dn,".print_r($extra,true).")</p>\n";
// check if the node already exists and return if it does
if (@ldap_read($this->test_ldap->ds,$dn,'objectClass=*'))
{
return false;
}
list($node,$base) = explode(',',$dn,2);
if (!@ldap_read($this->test_ldap->ds,$base,'objectClass=*'))
{
$this->_create_node($base); // create the base if it's not already there
}
// now we need to create the node itself
list($name,$value) = explode('=',$node);
if (!isset(self::$requiredObjectclasses[$name]))
{
throw new egw_exception_wrong_userinput(lang('Can not create DN %1!',$dn).' '.
lang('Supported node types:').implode(', ',array_keys(self::$requiredObjectclasses)));
}
if ($name == 'dc') $extra['o'] = $value; // required by organisation
if (!@ldap_add($this->test_ldap->ds,$dn,$attr = array(
$name => $value,
'objectClass' => self::$requiredObjectclasses[$name],
)+$extra))
{
throw new egw_exception_wrong_userinput(lang('Can not create DN %1!',$dn).
' ('.ldap_error($this->test_ldap->ds).', attributes='.print_r($attr,true).')');
}
return true;
}
/**
* Return default database settings for a given domain
*
* @return array
*/
static function defaults()
{
return array(
'ldap_host' => 'localhost',
'ldap_suffix' => 'dc=local',
'ldap_admin' => 'cn=admin,$suffix',
'ldap_admin_pw' => '',
'ldap_base' => 'o=$domain,$suffix',
'ldap_root' => 'cn=admin,$base',
'ldap_root_pw' => md5(microtime(true).$domain.session_id()),
'ldap_context' => 'ou=accounts,$base',
'ldap_search_filter' => '(uid=%user)',
'ldap_context_group' => 'ou=groups,$base',
);
}
/**
* Merges the default into the current properties, if they are empty or contain placeholders
*/
private function _merge_defaults()
{
foreach(self::defaults($this->domain) as $name => $default)
{
if (!$this->$name)
{
//echo "<p>setting $name='{$this->$name}' to it's default='$default'</p>\n";
$this->set_defaults[$name] = $this->$name = $default;
}
if (strpos($this->$name,'$') !== false)
{
$this->$name = str_replace(array(
'$domain',
'$suffix',
'$base',
),array(
$this->domain,
$this->ldap_suffix,
$this->ldap_base,
),$this->$name);
}
}
}
}