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<?php
namespace Kanboard\Auth;
use LogicException;
use Kanboard\Core\Base;
use Kanboard\Core\Ldap\Client as LdapClient;
use Kanboard\Core\Ldap\ClientException as LdapException;
use Kanboard\Core\Ldap\User as LdapUser;
use Kanboard\Core\Security\PasswordAuthenticationProviderInterface;
/**
* LDAP Authentication Provider
*
* @package auth
* @author Frederic Guillot
*/
class LdapAuth extends Base implements PasswordAuthenticationProviderInterface
{
/**
* User properties
*
* @access private
* @var \Kanboard\User\LdapUserProvider
*/
private $user = null;
/**
* Username
*
* @access private
* @var string
*/
private $username = '';
/**
* Password
*
* @access private
* @var string
*/
private $password = '';
/**
* Get authentication provider name
*
* @access public
* @return string
*/
public function getName()
{
return 'LDAP';
}
/**
* Authenticate the user
*
* @access public
* @return boolean
*/
public function authenticate()
{
try {
$ldap = LdapClient::connect($this->getLdapUsername(), $this->getLdapPassword());
$user = LdapUser::getUser($ldap, $this->getLdapUserPattern());
if ($user === null) {
$this->logger->info('User not found in LDAP server');
return false;
}
if ($user->getUsername() === '') {
throw new LogicException('Username not found in LDAP profile, check the parameter LDAP_USER_ATTRIBUTE_USERNAME');
}
if ($ldap->authenticate($user->getDn(), $this->password)) {
$this->user = $user;
return true;
}
} catch (LdapException $e) {
$this->logger->error($e->getMessage());
}
return false;
}
/**
* Get user object
*
* @access public
* @return \Kanboard\User\LdapUserProvider
*/
public function getUser()
{
return $this->user;
}
/**
* Set username
*
* @access public
* @param string $username
*/
public function setUsername($username)
{
$this->username = $username;
}
/**
* Set password
*
* @access public
* @param string $password
*/
public function setPassword($password)
{
$this->password = $password;
}
/**
* Get LDAP user pattern
*
* @access public
* @return string
*/
public function getLdapUserPattern()
{
if (! LDAP_USER_FILTER) {
throw new LogicException('LDAP user filter empty, check the parameter LDAP_USER_FILTER');
}
return sprintf(LDAP_USER_FILTER, $this->username);
}
/**
* Get LDAP username (proxy auth)
*
* @access public
* @return string
*/
public function getLdapUsername()
{
switch ($this->getLdapBindType()) {
case 'proxy':
return LDAP_USERNAME;
case 'user':
return sprintf(LDAP_USERNAME, $this->username);
default:
return null;
}
}
/**
* Get LDAP password (proxy auth)
*
* @access public
* @return string
*/
public function getLdapPassword()
{
switch ($this->getLdapBindType()) {
case 'proxy':
return LDAP_PASSWORD;
case 'user':
return $this->password;
default:
return null;
}
}
/**
* Get LDAP bind type
*
* @access public
* @return integer
*/
public function getLdapBindType()
{
if (LDAP_BIND_TYPE !== 'user' && LDAP_BIND_TYPE !== 'proxy' && LDAP_BIND_TYPE !== 'anonymous') {
throw new LogicException('Wrong value for the parameter LDAP_BIND_TYPE');
}
return LDAP_BIND_TYPE;
}
}
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