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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
/**
* Storage driver for using multiple storage drivers in a fall through fashion
*
* PHP versions 4 and 5
*
* LICENSE: This source file is subject to version 3.01 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_01.txt. If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to license@php.net so we can mail you a copy immediately.
*
* @category Authentication
* @package Auth
* @author Adam Ashley <aashley@php.net>
* @copyright 2001-2006 The PHP Group
* @license http://www.php.net/license/3_01.txt PHP License 3.01
* @version CVS: $Id: Multiple.php,v 1.3 2007/02/02 00:41:14 aashley Exp $
* @since File available since Release 1.5.0
*/
/**
* Include Auth_Container base class
*/
require_once "Auth/Container.php";
/**
* Include PEAR package for error handling
*/
require_once "PEAR.php";
/**
* Storage driver for using multiple storage drivers in a fall through fashion
*
* This storage driver provides a mechanism for working through multiple
* storage drivers until either one allows successful login or the list is
* exhausted.
*
* This container takes an array of options of the following form:
*
* array(
* array(
* 'type' => <standard container type name>,
* 'options' => <normal array of options for container>,
* ),
* );
*
* Full example:
*
* $options = array(
* array(
* 'type' => 'DB',
* 'options' => array(
* 'dsn' => "mysql://user:password@localhost/database",
* ),
* ),
* array(
* 'type' => 'Array',
* 'options' => array(
* 'cryptType' => 'md5',
* 'users' => array(
* 'admin' => md5('password'),
* ),
* ),
* ),
* );
*
* $auth = new Auth('Multiple', $options);
*
* @category Authentication
* @package Auth
* @author Adam Ashley <aashley@php.net>
* @copyright 2001-2006 The PHP Group
* @license http://www.php.net/license/3_01.txt PHP License 3.01
* @version Release: 1.5.0 File: $Revision: 1.3 $
* @since File available since Release 1.5.0
*/
class Auth_Container_Multiple extends Auth_Container {
// {{{ properties
/**
* The options for each container
*
* @var array $options
*/
var $options = array();
/**
* The instanciated containers
*
* @var array $containers
*/
var $containers = array();
// }}}
// {{{ Auth_Container_Multiple()
/**
* Constructor for Array Container
*
* @param array $data Options for the container
* @return void
*/
function Auth_Container_Multiple($options)
{
if (!is_array($options)) {
PEAR::raiseError('The options for Auth_Container_Multiple must be an array');
}
if (count($options) < 1) {
PEAR::raiseError('You must define at least one sub container to use in Auth_Container_Multiple');
}
foreach ($options as $option) {
if (!isset($option['type'])) {
PEAR::raiseError('No type defined for sub container');
}
}
$this->options = $options;
}
// }}}
// {{{ fetchData()
/**
* Get user information from array
*
* This function uses the given username to fetch the corresponding
* login data from the array. If an account that matches the passed
* username and password is found, the function returns true.
* Otherwise it returns false.
*
* @param string Username
* @param string Password
* @return boolean|PEAR_Error Error object or boolean
*/
function fetchData($user, $pass)
{
$this->log('Auth_Container_Multiple::fetchData() called.', AUTH_LOG_DEBUG);
foreach ($this->options as $key => $options) {
$this->log('Using Container '.$key.' of type '.$options['type'].'.', AUTH_LOG_DEBUG);
if (isset($this->containers[$key]) && is_a($this->containers[$key], 'Auth_Container')) {
$container = &$this->containers[$key];
} else {
$this->containers[$key] = &$this->_auth_obj->_factory($options['type'], $options['options']);
$this->containers[$key]->_auth_obj = &$this->_auth_obj;
$container = &$this->containers[$key];
}
$result = $container->fetchData($user, $pass);
if (PEAR::isError($result)) {
$this->log('Container '.$key.': '.$result->getMessage(), AUTH_LOG_ERR);
return $result;
} elseif ($result == true) {
$this->log('Container '.$key.': Authentication successful.', AUTH_LOG_DEBUG);
return true;
} else {
$this->log('Container '.$key.': Authentication failed.', AUTH_LOG_DEBUG);
}
}
$this->log('Auth_Container_Multiple: All containers rejected user credentials.', AUTH_LOG_DEBUG);
return false;
}
// }}}
}
?>
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