mirror of
https://github.com/EGroupware/egroupware.git
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279 lines
7.2 KiB
PHP
279 lines
7.2 KiB
PHP
<?php
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/**
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* EGroupware EMailAdmin: Support for Dovecot IMAP
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*
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* @link http://www.stylite.de
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* @package emailadmin
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* @author Ralf Becker <rb@stylite.de>
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @version $Id$
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*/
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/**
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* Manages connection to Dovecot IMAP server
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*
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* Basic differences to cyrusimap:
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* - no real admin user, but master user, whos password can be used to connect instead of real user
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* - mailboxes have to be deleted in filesystem (no IMAP command for that)
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* --> require by webserver writable user_home to be configured, otherwise deleting get ignored like with defaultimap
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* - quota can be read, but not set
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*/
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class emailadmin_imap_dovecot extends emailadmin_imap
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{
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/**
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* Label shown in EMailAdmin
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*/
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const DESCRIPTION = 'Dovecot';
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/**
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* Capabilities of this class (pipe-separated): default, sieve, admin, logintypeemail
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*/
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const CAPABILITIES = 'default|sieve|timedsieve|admin|logintypeemail';
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/**
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* prefix for groupnames, when using groups in ACL Management
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*/
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const ACL_GROUP_PREFIX = '$';
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// mailbox delimiter
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var $mailboxDelimiter = '.';
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// mailbox prefix
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var $mailboxPrefix = '';
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/**
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* To enable deleting of a mailbox user_home has to be set and be writable by webserver
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*
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* Supported placeholders are:
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* - %d domain
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* - %u username part of email
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* - %s email address
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*
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* @var string
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*/
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var $user_home; // = '/var/dovecot/imap/%d/%u';
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/**
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* Ensure we use an admin connection
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*
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* Prefixes adminUsername with real username (separated by an asterisk)
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*
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* @param string $_username =null create an admin connection for given user or $this->acc_imap_username
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*/
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function adminConnection($_username=null)
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{
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// generate admin user name of $username
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if (($pos = strpos($this->acc_imap_admin_username, '*')) !== false) // remove evtl. set username
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{
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$this->params['acc_imap_admin_username'] = substr($this->acc_imap_admin_username, $pos+1);
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}
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$this->params['acc_imap_admin_username'] = (is_string($_username) ? $_username : $this->acc_imap_username).
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'*'.$this->acc_imap_admin_username;
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parent::adminConnection($_username);
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}
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/**
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* Create mailbox string from given mailbox-name and user-name
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*
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* Admin connection in Dovecot is always for a given user, we can simply use INBOX here.
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*
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* @param string $_username
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* @param string $_folderName =''
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* @return string utf-7 encoded (done in getMailboxName)
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*/
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function getUserMailboxString($_username, $_folderName='')
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{
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unset($_username); // not used, but required by function signature
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$mailboxString = 'INBOX';
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if (!empty($_folderName))
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{
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$nameSpaces = $this->getNameSpaceArray();
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$mailboxString .= $nameSpaces['others'][0]['delimiter'] . $_folderName;
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}
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return $mailboxString;
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}
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/**
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* Updates an account
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*
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* @param array $_hookValues only value for key 'account_lid' and 'new_passwd' is used
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*/
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function addAccount($_hookValues)
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{
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return $this->updateAccount($_hookValues);
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}
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/**
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* Delete an account
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*
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* @param array $_hookValues only value for key 'account_lid' is used
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*/
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function deleteAccount($_hookValues)
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{
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// some precausion to really delete just _one_ account
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if (strpos($_hookValues['account_lid'],'%') !== false ||
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strpos($_hookValues['account_lid'],'*') !== false)
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{
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return false;
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}
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return !!$this->deleteUsers($_hookValues['account_lid']);
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}
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/**
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* Delete multiple (user-)mailboxes via a wildcard, eg. '%' for whole domain
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*
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* Domain is the configured domain and it uses the Cyrus admin user
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*
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* @return string $username='%' username containing wildcards, default '%' for all users of a domain
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* @return int|boolean number of deleted mailboxes on success or false on error
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*/
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function deleteUsers($username='%')
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{
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if(!$this->acc_imap_administration || empty($username))
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{
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return false;
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}
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// dovecot can not delete mailbox, they need to be physically deleted in filesystem (webserver needs write-rights to do so!)
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if (empty($this->user_home))
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{
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return false;
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}
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$replace = array('%d' => $this->domainName, '%u' => $username, '%s' => $username.'@'.$this->domainName);
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if ($username == '%')
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{
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if (($pos = strpos($this->user_home, '%d')) === false)
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{
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throw new egw_exception_assertion_failed("user_home='$this->user_home' contains no domain-part '%d'!");
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}
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$home = strtr(substr($this->user_home, 0, $pos+2), $replace);
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$ret = count(scandir($home))-2;
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}
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else
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{
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$home = strtr($this->user_home, $replace);
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$ret = 1;
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}
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if (!is_writable(dirname($home)) || !self::_rm_recursive($home))
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{
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error_log(__METHOD__."('$username') Failed to delete $home!");
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return false;
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}
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return $ret;
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}
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/**
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* Recursively delete a directory (or file)
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*
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* @param string $path
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* @return boolean true on success, false on failure
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*/
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private function _rm_recursive($path)
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{
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if (is_dir($path))
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{
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foreach(scandir($path) as $file)
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{
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if ($file == '.' || $file == '..') continue;
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if (is_dir($path))
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{
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self::_rm_recursive($path.'/'.$file);
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}
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elseif (!unlink($path.'/'.$file))
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{
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return false;
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}
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}
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if (!rmdir($path))
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{
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return false;
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}
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}
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elseif(!unlink($path))
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{
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return false;
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}
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return true;
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}
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/**
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* returns information about a user
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* currently only supported information is the current quota
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*
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* @param string $_username
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* @return array userdata
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*/
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function getUserData($_username)
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{
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if (isset($this->username)) $bufferUsername = $this->username;
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if (isset($this->loginName)) $bufferLoginName = $this->loginName;
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$this->username = $this->loginName = $_username;
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// now disconnect to be able to reestablish the connection with the targetUser while we go on
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try
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{
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$this->adminConnection();
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}
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catch (Exception $e)
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{
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// error_log(__METHOD__.__LINE__." Could not establish admin Connection!".$e->getMessage());
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unset($e);
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return array();
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}
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$userData = array();
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// we are authenticated with master but for current user
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if(($quota = $this->getStorageQuotaRoot('INBOX')))
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{
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$userData['quotaLimit'] = (int) ($quota['limit'] / 1024);
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$userData['quotaUsed'] = (int) ($quota['usage'] / 1024);
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}
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$this->username = $bufferUsername;
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$this->loginName = $bufferLoginName;
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$this->disconnect();
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//error_log(__METHOD__."('$_username') getStorageQuotaRoot('INBOX')=".array2string($quota).' returning '.array2string($userData));
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return $userData;
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}
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/**
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* Set information about a user
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* currently only supported information is the current quota
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*
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* Dovecot get's quota from it's user-db, but cant set it --> ignored
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*
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* @param string $_username
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* @param int $_quota
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* @return boolean
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*/
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function setUserData($_username, $_quota)
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{
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unset($_username); unset($_quota); // not used, but required by function signature
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return true;
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}
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/**
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* Updates an account
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*
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* @param array $_hookValues only value for key 'account_lid' and 'new_passwd' is used
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*/
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function updateAccount($_hookValues)
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{
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unset($_hookValues); // not used, but required by function signature
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if(!$this->acc_imap_administration)
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{
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return false;
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}
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// mailbox get's automatic created with full rights for user
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return true;
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}
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}
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