interceptorregistry.inc.php
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<?php
/**
* $Id$
*
* The contents of this file are subject to the KnowledgeTree Public
* License Version 1.1.2 ("License"); You may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.knowledgetree.com/KPL
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights and
* limitations under the License.
*
* All copies of the Covered Code must include on each user interface screen:
* (i) the "Powered by KnowledgeTree" logo and
* (ii) the KnowledgeTree copyright notice
* in the same form as they appear in the distribution. See the License for
* requirements.
*
* The Original Code is: KnowledgeTree Open Source
*
* The Initial Developer of the Original Code is The Jam Warehouse Software
* (Pty) Ltd, trading as KnowledgeTree.
* Portions created by The Jam Warehouse Software (Pty) Ltd are Copyright
* (C) 2007 The Jam Warehouse Software (Pty) Ltd;
* All Rights Reserved.
* Contributor( s): ______________________________________
*
*/
require_once(KT_LIB_DIR . '/authentication/interceptorinstances.inc.php');
/**
* This is where all login interceptors register themselves as available
* to the system.
*
* Login interceptors allow for the login process to be more dynamic -
* to call external programs to perform authentication, to redirect to
* external authentication web sites, and so forth.
*/
class KTInterceptorRegistry {
var $_aInterceptorsInfo = array();
static function &getSingleton () {
if (!KTUtil::arrayGet($GLOBALS['_KT_PLUGIN'], 'oKTInterceptorRegistry')) {
$GLOBALS['_KT_PLUGIN']['oKTInterceptorRegistry'] = new KTInterceptorRegistry;
}
return $GLOBALS['_KT_PLUGIN']['oKTInterceptorRegistry'];
}
function registerInterceptor($class, $nsname, $path = '', $sPlugin = null) {
$this->_aInterceptorsInfo[$nsname] = array($class, $nsname, $path, $sPlugin);
}
function getInterceptorInfo($nsname) {
return $this->_aInterceptorsInfo[$nsname];
}
function &getInterceptor($nsname, $config = null) {
$aInfo = $this->_aInterceptorsInfo[$nsname];
$sClass = $aInfo[0];
$sPath = $aInfo[2];
if ($sPath) {
if (file_exists($sPath)) {
require_once($sPath);
}
}
if (!class_exists($sClass)) {
return PEAR::raiseError(sprintf(_kt('Can\'t find interceptor: %s'), $nsname));
}
$oInterceptor =new $sClass;
if ($config) {
$oInterceptor->configure($config);
}
return $oInterceptor;
}
function &getInterceptorFromInstance($oInstance) {
return $this->getInterceptor($oInstance->getInterceptorNamespace(), $oInstance->getConfig());
}
function &getConfiguredInstances() {
$aInterceptorInstances = $this->_getInterceptorInstances();
$aReturn = array();
foreach ($aInterceptorInstances as $oInstance) {
$oInterceptor = $this->getInterceptorFromInstance($oInstance);
if (PEAR::isError($oInterceptor)) {
continue;
}
$aReturn[] = $oInterceptor;
}
return $aReturn;
}
function checkInterceptorsForAuthenticated() {
$oRegistry =& KTInterceptorRegistry::getSingleton();
$aInterceptors = $oRegistry->getConfiguredInstances();
$aErrors = array();
foreach ($aInterceptors as $oInterceptor) {
$oUser = $oInterceptor->authenticated();
if (PEAR::isError($oUser)) {
$aErrors[] = $oUser;
continue;
}
if ($oUser) {
return $oUser;
}
}
if (count($aErrors)) {
return $aErrors;
}
return false;
}
function _getInterceptorInstances() {
return KTInterceptorInstance::getInterceptorInstances();
}
function checkInterceptorsForTakeOver() {
$oRegistry =& KTInterceptorRegistry::getSingleton();
$aInterceptors = $oRegistry->getConfiguredInstances();
foreach ($aInterceptors as $oInterceptor) {
$oInterceptor->takeover();
}
return false;
}
}
?>