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<?php
/**
* This file supplies a dumb store backend for OpenID servers and
* consumers.
*
* PHP versions 4 and 5
*
* LICENSE: See the COPYING file included in this distribution.
*
* @package OpenID
* @author JanRain, Inc. <openid@janrain.com>
* @copyright 2005-2008 Janrain, Inc.
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache
*/
/**
* Import the interface for creating a new store class.
*/
require_once 'Auth/OpenID/Interface.php';
require_once 'Auth/OpenID/HMAC.php';
/**
* This is a store for use in the worst case, when you have no way of
* saving state on the consumer site. Using this store makes the
* consumer vulnerable to replay attacks, as it's unable to use
* nonces. Avoid using this store if it is at all possible.
*
* Most of the methods of this class are implementation details.
* Users of this class need to worry only about the constructor.
*
* @package OpenID
*/
class Auth_OpenID_DumbStore extends Auth_OpenID_OpenIDStore {
/**
* Creates a new {@link Auth_OpenID_DumbStore} instance. For the security
* of the tokens generated by the library, this class attempts to
* at least have a secure implementation of getAuthKey.
*
* When you create an instance of this class, pass in a secret
* phrase. The phrase is hashed with sha1 to make it the correct
* length and form for an auth key. That allows you to use a long
* string as the secret phrase, which means you can make it very
* difficult to guess.
*
* Each {@link Auth_OpenID_DumbStore} instance that is created for use by
* your consumer site needs to use the same $secret_phrase.
*
* @param string secret_phrase The phrase used to create the auth
* key returned by getAuthKey
*/
function Auth_OpenID_DumbStore($secret_phrase)
{
$this->auth_key = Auth_OpenID_SHA1($secret_phrase);
}
/**
* This implementation does nothing.
*/
function storeAssociation($server_url, $association)
{
}
/**
* This implementation always returns null.
*/
function getAssociation($server_url, $handle = null)
{
return null;
}
/**
* This implementation always returns false.
*/
function removeAssociation($server_url, $handle)
{
return false;
}
/**
* In a system truly limited to dumb mode, nonces must all be
* accepted. This therefore always returns true, which makes
* replay attacks feasible.
*/
function useNonce($server_url, $timestamp, $salt)
{
return true;
}
/**
* This method returns the auth key generated by the constructor.
*/
function getAuthKey()
{
return $this->auth_key;
}
}
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