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<?php
/**
* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
/**
* User authentication against an IMAP mail server
*
* @category Apps
* @package UserExternal
* @author Robin Appelman <icewind@owncloud.com>
* @license http://www.gnu.org/licenses/agpl AGPL
* @link http://github.com/owncloud/apps
*/
class OC_User_IMAP extends \OCA\user_external\Base {
private $mailbox;
private $domain;
/**
* Create new IMAP authentication provider
*
* @param string $mailbox PHP imap_open mailbox definition, e.g.
* {127.0.0.1:143/imap/readonly}
* @param string $domain If provided, loging will be restricted to this domain
*/
public function __construct($mailbox, $domain = '') {
parent::__construct($mailbox);
$this->mailbox=$mailbox;
$this->domain=$domain;
}
/**
* Check if the password is correct without logging in the user
*
* @param string $uid The username
* @param string $password The password
*
* @return true/false
*/
public function checkPassword($uid, $password) {
if (!function_exists('imap_open')) {
OCP\Util::writeLog('user_external', 'ERROR: PHP imap extension is not installed', OCP\Util::ERROR);
return false;
}
// Replace escaped @ symbol in uid (which is a mail address)
// but only if there is no @ symbol and if there is a %40 inside the uid
if (!(strpos($uid, '@') !== false) && (strpos($uid, '%40') !== false)) {
$uid = str_replace("%40","@",$uid);
}
$result = OC_DB::executeAudited(
'SELECT `userid` FROM `*PREFIX*preferences` WHERE `appid`=? AND `configkey`=? AND `configvalue`=?',
array('settings','email',$uid)
);
$users = array();
while ($row = $result->fetchRow()) {
$users[] = $row['userid'];
}
if(count($users) === 1) {
$username = $uid;
$uid = $users[0];
// Check if we only want logins from ONE domain and strip the domain part from UID
}elseif($this->domain != '') {
$pieces = explode('@', $uid);
if(count($pieces) == 1) {
$username = $uid . "@" . $this->domain;
}elseif((count($pieces) == 2) and ($pieces[1] == $this->domain)) {
$username = $uid;
$uid = $pieces[0];
}else{
return false;
}
}else{
$username = $uid;
}
$mbox = @imap_open($this->mailbox, $username, $password, OP_HALFOPEN, 1);
imap_errors();
imap_alerts();
if($mbox !== FALSE) {
imap_close($mbox);
$uid = mb_strtolower($uid);
$this->storeUser($uid);
return $uid;
}else{
return false;
}
}
}