authenticationproviderregistry.inc.php
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<?php
/**
* $Id$
*
* Copyright (c) 2006 Jam Warehouse http://www.jamwarehouse.com
*
* 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; using version 2 of the License.
*
* 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
*
* -------------------------------------------------------------------------
*
* You can contact the copyright owner regarding licensing via the contact
* details that can be found on the KnowledgeTree web site:
*
* http://www.ktdms.com/
*/
/**
* This is where all authentication providers register themselves as
* available to the system. Only the classes are registered here, not
* specific instances.
*
* For instance, an LDAP authentication provider is registered. It
* can't, by itself, perform any authentication, as it is not
* configured.
*
* The authenticators table in the database lists specific instances
* configured in the system. It contains it's own name (for humans to
* differentiate between instances), it's own namespace name (for the
* system and plugins to be able to find it accurately), it's
* authentication provider namespace name, and some configuration data
* that is handed over to the authentication provider instance to
* configure itself.
*
* If a user has no authenticator set up, the KnowledgeTree
* Authentication Provider is used. This is hard-coded to use the
* KnowledgeTree users table to check the password against.
*/
class KTAuthenticationProviderRegistry {
var $_aAuthenticationProvidersInfo = array();
var $_aAuthenticationProviders = array();
// {{{ getSingleton
function &getSingleton () {
if (!KTUtil::arrayGet($GLOBALS, 'oKTAuthenticationProviderRegistry')) {
$GLOBALS['oKTAuthenticationProviderRegistry'] = new KTAuthenticationProviderRegistry;
}
return $GLOBALS['oKTAuthenticationProviderRegistry'];
}
// }}}
function registerAuthenticationProvider($name, $class, $nsname, $path = "", $sPlugin = null) {
$this->_aAuthenticationProvidersInfo[$nsname] = array($name, $class, $nsname, $path, $sPlugin);
}
function getAuthenticationProviderInfo($nsname) {
return $this->_aAuthenticationProviderInfo[$nsname];
}
function &getAuthenticationProvider($nsname) {
$oProvider =& KTUtil::arrayGet($this->_aAuthenticationProviders, $nsname);
if ($oProvider) {
return $oProvider;
}
$aInfo = $this->_aAuthenticationProvidersInfo[$nsname];
$sClass = $aInfo[1];
$sPath = $aInfo[3];
if ($sPath) {
require_once($sPath);
}
$oProvider =& new $sClass;
$this->_aAuthenticationProviders[$nsname] =& $oProvider;
return $oProvider;
}
function getAuthenticationProvidersInfo() {
return array_values($this->_aAuthenticationProvidersInfo);
}
}
?>