authenticationproviderregistry.inc.php
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<?php
/**
* 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);
}
}
?>