egroupware_official/emailadmin/inc/class.defaultimap.inc.php
Klaus Leithoff 8f4c575de1 * eMail/IMAP: fix for failed connection for subsequent connects when using STARTTLS in certain enviroments
the buffering of capabilities triggers connections that STARTTLS to use these capabilities at the wrong time; thus we reset the capability buffered by icServer object
2013-09-17 07:53:09 +00:00

728 lines
20 KiB
PHP

<?php
/**
* EGroupware EMailAdmin: Support for Cyrus IMAP (or other IMAP Server supporting Sieve)
*
* @link http://www.stylite.de
* @package emailadmin
* @author Ralf Becker <rb@stylite.de>
* @author Klaus Leithoff <kl@stylite.de>
* @author Lars Kneschke
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
require_once 'Net/IMAP.php';
define('IMAP_NAMESPACE_PERSONAL', 'personal');
define('IMAP_NAMESPACE_OTHERS' , 'others');
define('IMAP_NAMESPACE_SHARED' , 'shared');
define('IMAP_NAMESPACE_ALL' , 'all');
/**
* This class holds all information about the imap connection.
* This is the base class for all other imap classes.
*
* Also proxies Sieve calls to emailadmin_sieve (eg. it behaves like the former felamimail bosieve),
* to allow IMAP plugins to also manage Sieve connection.
*/
class defaultimap extends Net_IMAP
{
/**
* Label shown in EMailAdmin
*/
const DESCRIPTION = 'standard IMAP server';
/**
* Capabilities of this class (pipe-separated): default, sieve, admin, logintypeemail
*/
const CAPABILITIES = 'default|sieve';
/**
* ImapServerId
*
* @var int
*/
var $ImapServerId;
/**
* the password to be used for admin connections
*
* @var string
*/
var $adminPassword;
/**
* the username to be used for admin connections
*
* @var string
*/
var $adminUsername;
/**
* enable encryption
*
* @var bool
*/
var $encryption;
/**
* the hostname/ip address of the imap server
*
* @var string
*/
var $host;
/**
* the password for the user
*
* @var string
*/
var $password;
/**
* the port of the imap server
*
* @var integer
*/
var $port = 143;
/**
* the username
*
* @var string
*/
var $username;
/**
* the domainname to be used for vmailmgr logins
*
* @var string
*/
var $domainName = false;
/**
* validate ssl certificate
*
* @var bool
*/
var $validatecert;
/**
* the mailbox delimiter
*
* @var string
*/
var $mailboxDelimiter = '/'; // TODO: Check if still used
/**
* the mailbox prefix. maybe used by uw-imap only?
*
* @var string
*/
var $mailboxPrefix = '~/mail'; // TODO: Check if still used
/**
* is the mbstring extension available
*
* @var unknown_type
*/
var $mbAvailable;
/**
* Mailboxes which get automatic created for new accounts (INBOX == '')
*
* @var array
*/
var $imapLoginType;
var $defaultDomain;
/**
* disable internal conversion from/to ut7
* get's used by Net_IMAP
*
* @var array
*/
var $_useUTF_7 = false;
/**
* a debug switch
*/
var $debug = false;
/**
* Sieve available
*
* @var boolean
*/
var $enableSieve = false;
/**
* Hostname / IP of sieve host
*
* @var string
*/
var $sieveHost;
/**
* Port of Sieve service
*
* @var int
*/
var $sievePort = 4190;
/**
* the construtor
*
* @return void
*/
function __construct()
{
if (function_exists('mb_convert_encoding')) {
$this->mbAvailable = TRUE;
}
$this->restoreSessionData();
// construtor for Net_IMAP stuff
$this->Net_IMAPProtocol();
}
/**
* Return description for EMailAdmin
*
* @return string
*/
public static function description()
{
return static::DESCRIPTION;
}
/**
* Magic method to re-connect with the imapserver, if the object get's restored from the session
*/
function __wakeup()
{
#$this->openConnection($this->isAdminConnection); // we need to re-connect
}
/**
* adds a account on the imap server
*
* @param array $_hookValues
* @return bool true on success, false on failure
*/
function addAccount($_hookValues)
{
return true;
}
/**
* updates a account on the imap server
*
* @param array $_hookValues
* @return bool true on success, false on failure
*/
function updateAccount($_hookValues)
{
return true;
}
/**
* deletes a account on the imap server
*
* @param array $_hookValues
* @return bool true on success, false on failure
*/
function deleteAccount($_hookValues)
{
return true;
}
function disconnect()
{
//error_log(__METHOD__.function_backtrace());
$retval = parent::disconnect();
if( PEAR::isError($retval)) error_log(__METHOD__.$retval->message);
$this->_connected = false;
}
/**
* converts a foldername from current system charset to UTF7
*
* @param string $_folderName
* @return string the encoded foldername
*/
function encodeFolderName($_folderName)
{
if($this->mbAvailable) {
return mb_convert_encoding($_folderName, "UTF7-IMAP", $GLOBALS['egw']->translation->charset());
}
// if not
// we can encode only from ISO 8859-1
return imap_utf7_encode($_folderName);
}
/**
* returns the supported capabilities of the imap server
* return false if the imap server does not support capabilities
*
* @return array the supported capabilites
*/
function getCapabilities()
{
if(!is_array($this->sessionData['capabilities'][$this->host])) {
return false;
}
return $this->sessionData['capabilities'][$this->host];
}
/**
* return the delimiter used by the current imap server
*
* @return string the delimimiter
*/
function getDelimiter()
{
return isset($this->sessionData['delimiter'][$this->host]) ? $this->sessionData['delimiter'][$this->host] : $this->mailboxDelimiter;
}
/**
* Create transport string
*
* @param string $host - you may overwrite classvar
* @param string $_encryption - you may overwrite classvar
* @return string the transportstring
*/
function _getTransportString($host = null, $_encryption = null)
{
if ($this->debug && $_encryption) error_log(__METHOD__.__LINE__.'->'.$host.', '.$_encryption);
$encryption = $this->encryption;
if ($_encryption) $encryption = $_encryption;
if($encryption == 2) {
$connectionString = "tls://". ($host?$host:$this->host);
} elseif($encryption == 3) {
$connectionString = "ssl://". ($host?$host:$this->host);
} else {
// no tls
$connectionString = ($host?$host:$this->host);
}
return $connectionString;
}
/**
* Create the options array for SSL/TLS connections
*
* @param string $_encryption - you may overwrite classvar
* @return string the transportstring
*/
function _getTransportOptions($_encryption = null)
{
if ($this->debug && $_encryption) error_log(__METHOD__.__LINE__.'->'.$_encryption);
$encryption = $this->encryption;
if ($_encryption) $encryption = $_encryption;
if($this->validatecert === false) {
if($encryption == 2) {
return array(
'tls' => array(
'verify_peer' => false,
'allow_self_signed' => true,
)
);
} elseif($encryption == 3) {
return array(
'ssl' => array(
'verify_peer' => false,
'allow_self_signed' => true,
)
);
}
} else {
if($encryption == 2) {
return array(
'tls' => array(
'verify_peer' => true,
'allow_self_signed' => false,
)
);
} elseif($encryption == 3) {
return array(
'ssl' => array(
'verify_peer' => true,
'allow_self_signed' => false,
)
);
}
}
return null;
}
/**
* get the effective Username for the Mailbox, as it is depending on the loginType
* @param string $_username
* @return string the effective username to be used to access the Mailbox
*/
function getMailBoxUserName($_username)
{
switch ($this->loginType)
{
case 'email':
$_username = $_username;
$accountID = $GLOBALS['egw']->accounts->name2id($_username);
$accountemail = $GLOBALS['egw']->accounts->id2name($accountID,'account_email');
//$accountemail = $GLOBALS['egw']->accounts->read($GLOBALS['egw']->accounts->name2id($_username,'account_email'));
if (!empty($accountemail))
{
list($lusername,$domain) = explode('@',$accountemail,2);
if (strtolower($domain) == strtolower($this->domainName) && !empty($lusername))
{
$_username = $lusername;
}
}
break;
case 'uidNumber':
$_username = 'u'.$GLOBALS['egw']->accounts->name2id($_username);
break;
}
return strtolower($_username);
}
/**
* Create mailbox string from given mailbox-name and user-name
*
* @param string $_folderName=''
* @return string utf-7 encoded (done in getMailboxName)
*/
function getUserMailboxString($_username, $_folderName='')
{
$nameSpaces = $this->getNameSpaces();
if(!isset($nameSpaces['others'])) {
return false;
}
$_username = $this->getMailBoxUserName($_username);
if($this->loginType == 'vmailmgr' || $this->loginType == 'email' || $this->loginType == 'uidNumber') {
$_username .= '@'. $this->domainName;
}
$mailboxString = $nameSpaces['others'][0]['name'] . $_username . (!empty($_folderName) ? $nameSpaces['others'][0]['delimiter'] . $_folderName : '');
return $mailboxString;
}
/**
* get list of namespaces
*
* @return array array containing information about namespace
*/
function getNameSpaces()
{
if(!$this->_connected) {
return false;
}
static $nameSpace;
if (is_null($nameSpace)) $nameSpace =& egw_cache::getSession('email','defaultimap_nameSpace');
if (isset($nameSpace[$this->ImapServerId])) return $nameSpace[$this->ImapServerId];
$retrieveDefault = false;
if($this->hasCapability('NAMESPACE')) {
$lNameSpace = $this->getNamespace();
if( PEAR::isError($lNameSpace)) {
//error_log("emailadmin::defaultimap->getNameSpaces: called from->".function_backtrace());
if ($this->debug) error_log("emailadmin::defaultimap->getNameSpaces:".print_r($lNameSpace,true));
$retrieveDefault = true;
} else {
$result = array();
$result['personal'] = $lNameSpace['personal'];
if(is_array($lNameSpace['others'])) {
$result['others'] = $lNameSpace['others'];
}
if(is_array($lNameSpace['shared'])) {
$result['shared'] = $lNameSpace['shared'];
}
}
}
if (!$this->hasCapability('NAMESPACE') || $retrieveDefault) {
$delimiter = $this->getHierarchyDelimiter();
if( PEAR::isError($delimiter)) $delimiter = '/';
$result['personal'] = array(
0 => array(
'name' => '',
'delimiter' => $delimiter
)
);
}
$nameSpace[$this->ImapServerId] = $result;
return $result;
}
/**
* returns the quota for given foldername
* gets quota for the current user only
*
* @param string $_folderName
* @return string the current quota for this folder
*/
# function getQuota($_folderName)
# {
# if(!is_resource($this->mbox)) {
# $this->openConnection();
# }
#
# if(function_exists('imap_get_quotaroot') && $this->supportsCapability('QUOTA')) {
# $quota = @imap_get_quotaroot($this->mbox, $this->encodeFolderName($_folderName));
# if(is_array($quota) && isset($quota['STORAGE'])) {
# return $quota['STORAGE'];
# }
# }
#
# return false;
# }
/**
* return the quota for another user
* used by admin connections only
*
* @param string $_username
* @param string $_what - what to retrieve either QMAX, USED or ALL is supported
* @returnmixed the quota for specified user (by what) or array with all available Quota Information, or false
*/
function getQuotaByUser($_username, $_what='QMAX')
{
$mailboxName = $this->getUserMailboxString($_username);
$storageQuota = $this->getStorageQuota($mailboxName);
//error_log(__METHOD__.' Username:'.$_username.' Mailbox:'.$mailboxName.' Quota('.$_what.'):'.array2string($storageQuota));
if ( PEAR::isError($storageQuota)) error_log(__METHOD__.$storageQuota->message);
if(is_array($storageQuota) && (isset($storageQuota[$_what])||($_what=='ALL' && (isset($storageQuota['QMAX'])||isset($storageQuota['USED']))))) {
//error_log(__METHOD__.' '.array2string($storageQuota).' '.$_what.' => '.(int)$storageQuota[$_what]);
return ($_what=='ALL'?$storageQuota:(int)$storageQuota[$_what]);
}
return false;
}
/**
* returns information about a user
*
* Only a stub, as admin connection requires, which is only supported for Cyrus
*
* @param string $_username
* @return array userdata
*/
function getUserData($_username)
{
return array();
}
/**
* opens a connection to a imap server
*
* @param bool $_adminConnection create admin connection if true
* @param int $_timeout=null timeout in secs, if none given fmail pref or default of 20 is used
* @return boolean|PEAR_Error true on success, PEAR_Error of false on failure
*/
function openConnection($_adminConnection=false, $_timeout=null)
{
static $supportedAuthMethods;
//error_log(__METHOD__.function_backtrace());
//error_log(__METHOD__.__LINE__.($_adminConnection?' Adminconnection':' ').array2string($this));
// if no explicit $_timeout given with the openConnection call, check fmail preferences, or use default of 20
if (is_null($_timeout))
{
$timeout = felamimail_bo::getTimeOut();
$_timeout = $timeout > 0 ? $timeout : 20;
}
unset($this->_connectionErrorObject);
if($_adminConnection) {
$username = $this->adminUsername;
$password = $this->adminPassword;
$options = '';
$this->isAdminConnection = true;
} else {
$username = $this->loginName;
$password = $this->password;
$options = $_options;
$this->isAdminConnection = false;
}
// the buffering of capabilities triggers connections that STARTTLS to use these capabilities at the wrong time
// $this->encryption == 1 -> STARTTLS
if ($this->encryption == 1) unset($this->_serverSupportedCapabilities);
$this->setStreamContextOptions($this->_getTransportOptions());
$this->_timeout = $_timeout;
if( PEAR::isError($status = parent::connect($this->_getTransportString(), $this->port, $this->encryption == 1)) ) {
if ($this->debug) error_log(__METHOD__.__LINE__."Could not connect with ".$this->_getTransportString()." on Port ".$this->port." Encryption==1?".$this->encryption);
if ($this->debug && !empty($status->message)) error_log(__METHOD__.__LINE__."Status connect:#".$status->message.'#');
$this->_connectionErrorObject = (!empty($status->message) ? $status : new PEAR_Error("Could not connect with ".$this->_getTransportString()." on Port ".$this->port." Encryption==1?".$this->encryption));
return (!empty($status->message) ? $status : false);
}
//$this->setTimeout($_timeout); // socket::connect sets the timeout on connection
if(empty($username))
{
if ($this->debug) error_log(__METHOD__."No username supplied.".function_backtrace());
if ($this->_connected) $this->disconnect(); // disconnect (if connected)
$this->_connectionErrorObject = new PEAR_Error("No username supplied.");
return false;
}
// we cache the supported AuthMethods during session, to be able to speed up login.
if (is_null($supportedAuthMethods)) $supportedAuthMethods =& egw_cache::getSession('email','defaultimap_supportedAuthMethods');
if (isset($supportedAuthMethods[$this->ImapServerId])) $this->supportedAuthMethods = $supportedAuthMethods[$this->ImapServerId];
//error_log(__METHOD__.__LINE__.' ImapServerID:'.$this->ImapServerId.' '.array2string($this->supportedAuthMethods));
if( PEAR::isError($status = parent::login($username, $password, (in_array('LOGIN', $this->supportedAuthMethods)?'LOGIN':true), !$this->isAdminConnection)) ) {
if ($this->debug) error_log(__METHOD__."Could not log in with ->".$username.":".$password."<-");
if ($this->debug && $status->message) error_log(__METHOD__."Status login:".array2string($status->message));
//error_log(__METHOD__.'Called from:'.function_backtrace());
$this->disconnect();
$this->_connectionErrorObject = ($status->message ? $status : new PEAR_Error("Could not log in with the supplied credentials"));
return ($status->message ? $status : false);
}
$supportedAuthMethods[$this->ImapServerId] = $this->supportedAuthMethods;
//error_log(__METHOD__.__LINE__.' ImapServerID:'.$this->ImapServerId.' supported:'.array2string($this->supportedAuthMethods));
//error_log(__METHOD__.__LINE__.' ImapServerID:'.$this->ImapServerId.' ServerMethods:'.array2string($this->_serverAuthMethods));
return true;
}
/**
* restore session variable
*
*/
function restoreSessionData()
{
$this->sessionData = $GLOBALS['egw']->session->appsession('imap_session_data');
}
/**
* save session variable
*
*/
function saveSessionData()
{
$GLOBALS['egw']->session->appsession('imap_session_data','',$this->sessionData);
}
/**
* set userdata
*
* @param string $_username username of the user
* @param int $_quota quota in bytes
* @return bool true on success, false on failure
*/
function setUserData($_username, $_quota)
{
return true;
}
/**
* check if imap server supports given capability
*
* @param string $_capability the capability to check for
* @return bool true if capability is supported, false if not
*/
function supportsCapability($_capability)
{
return $this->hasCapability($_capability);
}
/**
* Instance of emailadmin_sieve
*
* @var emailadmin_sieve
*/
private $sieve;
public $scriptName;
public $error;
//public $error;
/**
* Proxy former felamimail bosieve methods to internal emailadmin_sieve instance
*
* @param string $name
* @param array $params
*/
public function __call($name,array $params=null)
{
if ($this->debug) error_log(__METHOD__.'->'.$name.' with params:'.array2string($params));
switch($name)
{
case 'installScript':
case 'getScript':
case 'setActive':
case 'setEmailNotification':
case 'getEmailNotification':
case 'setRules':
case 'getRules':
case 'retrieveRules':
case 'getVacation':
case 'setVacation':
if (is_null($this->sieve))
{
$this->sieve = new emailadmin_sieve($this);
$this->scriptName =& $this->sieve->scriptName;
$this->error =& $this->sieve->error;
}
$ret = call_user_func_array(array($this->sieve,$name),$params);
//error_log(__CLASS__.'->'.$name.'('.array2string($params).') returns '.array2string($ret));
return $ret;
}
throw new egw_exception_wrong_parameter("No method '$name' implemented!");
}
public function setVacationUser($_euser, $_scriptName, $_vacation)
{
if ($this->debug) error_log(__CLASS__.'::'.__METHOD__.' User:'.array2string($_euser).' Scriptname:'.array2string($_scriptName).' VacationMessage:'.array2string($_vacation));
if (is_null($this->sieve))
{
$this->sieve = new emailadmin_sieve();
$this->scriptName =& $this->sieve->scriptName;
$this->error =& $this->sieve->error;
$this->sieve->icServer = $this;
}
return $this->sieve->setVacationUser($_euser, $_scriptName, $_vacation);
}
/**
* set the asyncjob for a timed vacation
*
* @param array $_vacation the vacation to set/unset
* @param string $_scriptName ; optional scriptName
* @param boolean $_reschedule ; do nothing but reschedule the job by 3 minutes
* @return void
*/
function setAsyncJob ($_vacation, $_scriptName=null, $_reschedule=false)
{
// setting up an async job to enable/disable the vacation message
$async = new asyncservice();
$user = (isset($_vacation['account_id'])&&!empty($_vacation['account_id'])?$_vacation['account_id']:$GLOBALS['egw_info']['user']['account_id']);
$async_id = (isset($_vacation['id'])&&!empty($_vacation['id'])?$_vacation['id']:"felamimail-vacation-$user");
$async->delete($async_id); // ="felamimail-vacation-$user");
$_scriptName = (!empty($_scriptName)?$_scriptName:(isset($_vacation['scriptName'])&&!empty($_vacation['scriptName'])?$_vacation['scriptName']:'felamimail'));
$end_date = $_vacation['end_date'] + 24*3600; // end-date is inclusive, so we have to add 24h
if ($_vacation['status'] == 'by_date' && time() < $end_date && $_reschedule===false)
{
$time = time() < $_vacation['start_date'] ? $_vacation['start_date'] : $end_date;
$async->set_timer($time,$async_id,'felamimail.bosieve.async_vacation',$_vacation+array('scriptName'=>$_scriptName),$user);
}
if ($_reschedule===true)
{
$time = time() + 60*3;
unset($_vacation['next']);
unset($_vacation['times']);
if ($_reschedule) $async->set_timer($time,$async_id,'felamimail.bosieve.async_vacation',$_vacation+array('scriptName'=>$_scriptName),$user);
}
}
}