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<?php
/*
* $Horde: horde/lib/Auth/imap.php,v 1.4.2.6 2004/06/24 08:07:07 jan Exp $
*
* Copyright 1999-2003 Chuck Hagenbuch <chuck@horde.org>
* Copyright 1999-2003 Gaudenz Steinlin <gaudenz.steinlin@id.unibe.ch>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*/
Horde::functionCheck('imap_open', true,
'Auth_imap: Required IMAP extension not found.');
/**
* The Auth_imap class provides an IMAP implementation of the Horde
* authentication system.
*
* Parameters:
* 'hostspec' The hostname or IP address of the server.
* 'protocol' The connection protocol (e.g. 'imap', 'pop3', 'nntp').
* 'port' The server port to which we will connect.
* 'folder' The initial folder / mailbox to open.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @author Gaudenz Steinlin <gaudenz.steinlin@id.unibe.ch>
* @version $Revision: 1.4.2.6 $
* @since Horde 1.3
* @package horde.auth
*/
class Auth_imap extends Auth {
/**
* Hash containing connection parameters.
* @var array $params
*/
var $params = array();
/**
* Constructs a new IMAP authentication object.
*
* @param array $params A hash containing connection parameters.
*/
function Auth_imap($params = array())
{
$this->setParams($params);
}
/**
* Take a hash and build the connection string out of it.
*
* @param array $params A hash specifying an IMAP mailbox.
*/
function setParams($params)
{
if (empty($params['dsn'])) {
if (isset($params['hostspec'])) {
$params['dsn'] = '{' . $params['hostspec'];
} else {
$params['dsn'] = '{localhost';
}
if (isset($params['protocol'])) {
$params['dsn'] .= '/' . $params['protocol'];
} else {
$params['dsn'] .= '/imap';
}
if (isset($params['port'])) {
$params['dsn'] .= ':' . $params['port'] . '}';
} else {
$params['dsn'] .= ':143}';
}
if (isset($params['folder'])) {
$params['dsn'] .= $params['folder'];
}
}
$this->params = $params;
}
/**
* Find out if a set of login credentials are valid.
*
* @param string $userID The userID to check.
* @param array $credentials An array of login credentials. For IMAP,
* this must contain a password entry.
*
* @return boolean Whether or not the credentials are valid.
*/
function authenticate($userID, $credentials)
{
if (Auth::checkAuth($userID)) {
return true;
}
$imap = @imap_open($this->params['dsn'], $userID,
$credentials['password'], OP_HALFOPEN);
if ($imap) {
@imap_close($imap);
Auth::setAuth($userID, $credentials);
return true;
}
@imap_close($imap);
return false;
}
}
?>
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