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	diff --git a/plugins/managesieve/Changelog b/plugins/managesieve/Changelog
	index 8538f107f..f74e4f350 100644
	--- a/plugins/managesieve/Changelog
	+++ b/plugins/managesieve/Changelog
	@@ -1,397 +1,399 @@
	+* version 9.3 [2019-04-21]
	+-----------------------------------------------------------
	- Use RFC-compliant line endings, CRLF instead of LF (#6686)
	- Fix bug where global includes were requested for vacation (#6716)
	- Fix so "Create filter" option does not show up when Filters menu is disabled (#6723)

	* version 9.2 [2018-11-08]
	-----------------------------------------------------------
	- Added support for 'editheader' extension - RFC5293 (#5954)
	- Fix bug where show_real_foldernames setting wasn't respected (#6422)
	- Fix bug where custom header or variable could be lost on form submission (#6594)

	* version 9.1 [2018-05-19]
	-----------------------------------------------------------
	- Added GSSAPI support (#5779)
	- Added option managesieve_default_headers
	- Added option managesieve_forward to enable settings dialog for simple forwarding (#6021)
	- Support filter action with custom IMAP flags (#6011)
	- Support 'mime' extension tests - RFC5703 (#5832)
	- Support enabling the plugin for specified hosts only (#6292)
	- Support Elastic skin
	- Fix bug where text: syntax was forced for strings longer than 1024 characters (#6143)
	- Fix missing Save button in Edit Filter Set page of Classic skin (#6154)
	- Rename "Vacation" to "Out of Office"

	* version 9.0 [2017-10-02]
	-----------------------------------------------------------
	- Fix parsing dot-staffed lines in multiline text (#5838)
	- Fix AM/PM suffix in vacation time selectors
	- Fix bug where 'exists' operator was reset to 'contains' (#5899)
	- Add ability to disable filter sets and other actions (#5496, #5898)

	* version 8.9 [2017-05-22]
	-----------------------------------------------------------
	- Fix handling of scripts with nested rules (#5540)
	- Fix possible defect in handling \r\n in scripts (#5685)
	- Performance: Skip redundant LISTSCRIPTS command

	* version 8.8 [2016-11-27]
	-----------------------------------------------------------
	- Fix parsing of vacation date-time with non-default date_format (#5372)
	- Fix regression where js error is thrown if server does not support 'duplicate' extension
	- Add option to automatically set vacation :from address (#5428)
	- Support per-host managesieve_conn_options (#5136)
	- Added (optional) RAW script editor (#5414)

	* version 8.7 [2016-07-19]
	-----------------------------------------------------------
	- Support 'string' test from variables extension [RFC 5229] (#5248)
	- Support 'duplicate' extension [RFC 7352]
	- Unhide advanced rule controls if there are inputs with errors
	- Display warning message when filter form contains errors

	* version 8.6 [2016-04-06]
	-----------------------------------------------------------
	- Refactored script parser to be 100x faster (on big scripts)

	* version 8.5 [2015-11-15]
	-----------------------------------------------------------
	- Add support for :from parameter in vacation action (patch from Michele Locati)

	* version 8.4 [2015-04-20]
	-----------------------------------------------------------
	- Add option to prepopulate vacation addresses on form init (#1490030)
	- Add option to define default vacation interval
	- Fix missing position indicator in Larry skin when dragging a filter
	- Fix incorrect filter data after filter delete (#1490356)

	* version 8.3 [2015-03-12]
	-----------------------------------------------------------
	- Fix PHP fatal error when visiting Vacation interface and there's no sieve script yet
	- Fix handling of header test with one-element array as header name
	- Fix missing host:port in connection error message

	* version 8.2 [2015-01-14]
	-----------------------------------------------------------
	- Fix bug where actions without if/elseif/else in sieve scripts were skipped
	- Support "not allof" test as a negation of all sub-tests
	- Fix bug where vacation rule was saved to wrong script if managesieve_kolab_master=true
	- Improve procedure of script selection to write a vacation rule

	* version 8.1 [2014-12-09]
	-----------------------------------------------------------
	- Added simple API to manage vacation rule
	- Fix missing css/js scripts in filter form in mail task
	- Fix default vacation status (#1490019)
	- Make possible to set vacation start/end date and time
	- Fix compatibility with contextmenu plugin

	* version 8.0 [2014-07-16]
	-----------------------------------------------------------
	- Fix bug where non-existing (or unsubscribed) folder wasn't listed in folder selector (#1489956)
	- Added optional separate interface for out-of-office management (#1488266)
	- Fix disabled "create filter" action
	- Fix enotify/notify extension handling
	- Improved UI accessibility
	- Added option to specify connection socket parameters - managesieve_conn_options
	- Support vacation date rules without date extension (#1489978)

	* version 7.2 [2014-02-14]
	-----------------------------------------------------------
	- Nicely handle server-side modification of script names (#1489412)
	- Add Filters tab/section using plugin API hook
	- Fix issue where folder selector wasn't visible on new filter form
	- Fix issue where multi-select fields were not visible in new filter action rows (#1489600)
	- Fix issue in displaying filter form when managesieve_kolab_master=true
	and sieve variables extension is supported by the server (#1489599)
	- Fix wrong action folder selection if managesieve_domains is not empty (#1489617)
	- Fix filter creation from an email when preview frame is disabled (#1489647)

	* version 7.1 [2013-11-22]
	-----------------------------------------------------------
	- lib/Net_Sieve.php moved to Roundcube /lib directory
	- Added managesieve_domains option to limit redirect destinations
	- Fix bug where at least one additional address of vacation message was required (#1489345)
	- Fix so i;ascii-numeric comparator is not forced as default for :count and :value operators
	- Fix date/currentdate related form issues and comparators handling (#1489346)
	- Fix a bug where deleted filter was not removed from the list

	* version 7.0 [2013-09-09]
	-----------------------------------------------------------
	- Add vacation-seconds extension support (RFC 6131)
	- Several script parser code improvements
	- Support string list arguments in filter form (#1489018)
	- Support date, currendate and index tests - RFC5260 (#1488120)
	- Split plugin file into two files
	- Fix handling of &, <, > characters in scripts/filter names (#1489208)
	- Support 'keep' action (#1489226)
	- Add common headers to header selector (#1489271)

	* version 6.2 [2013-02-17]
	-----------------------------------------------------------
	- Support tls:// prefix in managesieve_host option
	- Removed depracated functions usage
	- Don't trim whitespace in folder names (#1488955)

	* version 6.1 [2012-12-21]
	-----------------------------------------------------------
	- Fixed filter activation/deactivation confirmation message (#1488765)
	- Moved rcube_* classes to <plugin>/lib/Roundcube for compat. with Roundcube Framework autoloader
	- Fixed filter selection after filter deletion (#1488832)
	- Fixed compatibility with jQueryUI-1.9
	- Don't force 'stop' action on last rule in a script

	* version 6.0 [2012-10-03]
	-----------------------------------------------------------
	- Fixed issue with DBMail bug [http://pear.php.net/bugs/bug.php?id=19077] (#1488594)
	- Added support for enotify/notify (RFC5435, RFC5436, draft-ietf-sieve-notify-00)
	- Change default port to 4190 (IANA-allocated), add port auto-detection (#1488713)
	- Added request size limits detection and script corruption prevention (#1488648)
	- Fix so scripts listed in managesieve_filename_exceptions aren't displayed on the list (#1488724)

	* version 5.2 [2012-07-24]
	-----------------------------------------------------------
	- Added GUI for variables setting - RFC5229 (patch from Paweł Słowik)
	- Fixed scrollbars in Larry's iframes
	- Fix performance issue in message_headers_output hook handling

	* version 5.1 [2012-06-21]
	-----------------------------------------------------------
	- Fixed filter popup width (for non-english localizations)
	- Fixed tokenizer infinite loop on invalid script content
	- Larry skin support
	- Fixed custom header name validity check, made RFC2822-compliant

	* version 5.0 [2012-01-05]
	-----------------------------------------------------------
	- Fixed setting test type to :is when none is specified
	- Fixed javascript error in IE8
	- Fixed possible ID duplication when adding filter rules very fast (#1488288)
	- Fixed bug where drag layer wasn't removed when dragging was ended over sets list

	* version 5.0-rc1 [2011-11-17]
	-----------------------------------------------------------
	- Fixed sorting of scripts, scripts including aware of the sort order
	- Fixed import of rules with unsupported tests
	- Added 'address' and 'envelope' tests support
	- Added 'body' extension support (RFC5173)
	- Added 'subaddress' extension support (RFC5233)
	- Added comparators support
	- Changed Sender/Recipient labels to From/To
	- Fixed importing rule names from Ingo
	- Fixed handling of extensions disabled in config

	* version 5.0-beta [2011-10-17]
	-----------------------------------------------------------
	- Added possibility to create a filter based on selected message "in-place"
	- Fixed import from Horde-INGO (#1488064)
	- Add managesieve_script_name option for default name of the script (#1487956)
	- Fixed handling of enabled magic_quotes_gpc setting
	- Fixed PHP warning on connection error when submitting filter form
	- Fixed bug where new action row with flags wasn't handled properly
	- Added managesieve_connect hook for plugins
	- Fixed doubled Filter tab on page refresh
	- Added filters set selector in filter form when invoked in mail task
	- Improved script parser, added support for include and variables extensions
	- Added Kolab's KEP:14 support (http://wiki.kolab.org/User:Greve/Drafts/KEP:14)
	- Use smaller action/rule buttons
	- UI redesign: added possibility to move filter to any place using drag&drop
	(instead of up/down buttons), added filter sets list object, added more
	'loading' messages
	- Added option to hide some scripts (managesieve_filename_exceptions)

	* version 4.3 [2011-07-28]
	-----------------------------------------------------------
	- Fixed handling of error in Net_Sieve::listScripts()
	- Fixed handling of REFERRAL responses (http://pear.php.net/bugs/bug.php?id=17107)
	- Fixed bug where wrong folders hierarchy was displayed on folders listing

	* version 4.2 [2011-05-24]
	-----------------------------------------------------------
	- Moved elsif replacement code to handle only imports from other formats
	- Fixed mod_mailbox() usage for newer Roundcube versions
	- Fixed regex extension (error: regex require missing)

	* version 4.1 [2011-03-07]
	-----------------------------------------------------------
	- Fix fileinto target is always INBOX (#1487776)
	- Fix escaping of backslash character in quoted strings (#1487780)
	- Fix handling of non-safe characters (double-quote, backslash)
	or UTF-8 characters (dovecot's implementation bug workaround)
	in script names
	- Fix saving of a script using flags extension on servers with imap4flags support (#1487825)

	* version 4.0 [2011-02-10]
	-----------------------------------------------------------
	- Fix STARTTLS for timsieved < 2.3.10
	- Added :regex and :matches support (#1487746)
	- Added setflag/addflag/removeflag support (#1487449)
	- Added support for vacation :subject field (#1487120)
	- rcube_sieve_script class moved to separate file
	- Moved javascript code from skin templates into managesieve.js file

	* version 3.0 [2011-02-01]
	-----------------------------------------------------------
	- Added support for SASL proxy authentication (#1486691)
	- Fixed parsing of scripts with \r\n line separator
	- Apply forgotten changes for form errors handling
	- Fix multi-line strings parsing (#1487685)
	- Added tests for script parser
	- Rewritten script parser
	- Fix double request when clicking on Filters tab using Firefox

	* version 2.10 [2010-10-10]
	-----------------------------------------------------------
	- Fixed import from Avelsieve
	- Use localized size units (#1486976)
	- Added support for relational operators and i;ascii-numeric comparator
	- Added popups with form errors

	* version 2.9 [2010-08-02]
	-----------------------------------------------------------
	- Fixed vacation parameters parsing (#1486883)

	* version 2.8 [2010-07-08]
	-----------------------------------------------------------
	- Added managesieve_auth_type option (#1486731)

	* version 2.7 [2010-07-06]
	-----------------------------------------------------------
	- Update Net_Sieve to version 1.3.0 (fixes LOGIN athentication)
	- Added support for copying and copy sending of messages (COPY extension)

	* version 2.6 [2010-06-03]
	-----------------------------------------------------------
	- Support %n and %d variables in managesieve_host option

	* version 2.5 [2010-05-04]
	-----------------------------------------------------------
	- Fix filters set label after activation
	- Fix filters set activation, add possibility to deactivate sets (#1486699)
	- Fix download button state when sets list is empty
	- Fix errors when sets list is empty

	* version 2.4 [2010-04-01]
	-----------------------------------------------------------
	- Fixed bug in DIGEST-MD5 authentication (http://pear.php.net/bugs/bug.php?id=17285)
	- Fixed disabling rules with many tests
	- Small css unification with core
	- Scripts import/export

	* version 2.3 [2010-03-18]
	-----------------------------------------------------------
	- Added import from Horde-INGO
	- Support for more than one match using if+stop instead of if+elsif structures (#1486078)
	- Support for selectively disabling rules within a single sieve script (#1485882)
	- Added vertical splitter

	* version 2.2 [2010-02-06]
	-----------------------------------------------------------
	- Fix handling of "<>" characters in filter names (#1486477)

	* version 2.1 [2010-01-12]
	-----------------------------------------------------------
	- Fix "require" structure generation when many modules are used
	- Fix problem with '<' and '>' characters in header tests

	* version 2.0 [2009-11-02]
	-----------------------------------------------------------
	- Added 'managesieve_debug' option
	- Added multi-script support
	- Small css improvements + sprite image buttons
	- PEAR::NetSieve 1.2.0b1

	* version 1.7 [2009-09-20]
	-----------------------------------------------------------
	- Support multiple managesieve hosts using %h variable
	in managesieve_host option
	- Fix first rule deleting (#1486140)

	* version 1.6 [2009-09-08]
	-----------------------------------------------------------
	- Fix warning when importing squirrelmail rules
	- Fix handling of "true" as "anyof (true)" test

	* version 1.5 [2009-09-04]
	-----------------------------------------------------------
	- Added es_ES, ua_UA localizations
	- Added 'managesieve_mbox_encoding' option

	* version 1.4 [2009-07-29]
	-----------------------------------------------------------
	- Updated PEAR::Net_Sieve to 1.1.7

	* version 1.3 [2009-07-24]
	-----------------------------------------------------------
	- support more languages
	- support config.inc.php file

	* version 1.2 [2009-06-28]
	-----------------------------------------------------------
	- Support IMAP namespaces in fileinto (#1485943)
	- Added it_IT localization

	* version 1.1 [2009-05-27]
	-----------------------------------------------------------
	- Added new icons
	- Added support for headers lists (coma-separated) in rules
	- Added de_CH localization

	* version 1.0 [2009-05-21]
	-----------------------------------------------------------
	- Rewritten using plugin API
	- Added hu_HU localization (Tamas Tevesz)

	* version beta7 (svn-r2300) [2009-03-01]
	-----------------------------------------------------------
	- Added SquirrelMail script auto-import (Jonathan Ernst)
	- Added 'vacation' support (Jonathan Ernst & alec)
	- Added 'stop' support (Jonathan Ernst)
	- Added option for extensions disabling (Jonathan Ernst & alec)
	- Added fi_FI, nl_NL, bg_BG localization
	- Small style fixes

	* version 0.2-stable1 (svn-r2205) [2009-01-03]
	-----------------------------------------------------------
	- Fix moving down filter row
	- Fixes for compressed js files in stable release package
	- Created patch for svn version r2205

	* version 0.2-stable [2008-12-31]
	-----------------------------------------------------------
	- Added ru_RU, fr_FR, zh_CN translation
	- Fixes for Roundcube 0.2-stable

	* version 0.2-beta [2008-09-21]
	-----------------------------------------------------------
	- Small css fixes for IE
	- Fixes for Roundcube 0.2-beta

	* version beta6 [2008-08-08]
	-----------------------------------------------------------
	- Added de_DE translation
	- Fix for Roundcube r1634

	* version beta5 [2008-06-10]
	-----------------------------------------------------------
	- Fixed 'exists' operators
	- Fixed 'not*' operators for custom headers
	- Fixed filters deleting

	* version beta4 [2008-06-09]
	-----------------------------------------------------------
	- Fix for Roundcube r1490

	* version beta3 [2008-05-22]
	-----------------------------------------------------------
	- Fixed textarea error class setting
	- Added pagetitle setting
	- Added option 'managesieve_replace_delimiter'
	- Fixed errors on IE (still need some css fixes)

	* version beta2 [2008-05-20]
	-----------------------------------------------------------
	- Use 'if' only for first filter and 'elsif' for the rest

	* version beta1 [2008-05-15]
	-----------------------------------------------------------
	- Initial version for Roundcube r1388.
	diff --git a/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php b/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php
	index 074d3be85..1dcec48ba 100644
	--- a/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php
	+++ b/plugins/managesieve/lib/Roundcube/rcube_sieve_engine.php
	@@ -1,3085 +1,3085 @@
	<?php

	/**
	* Managesieve (Sieve Filters) Engine
	*
	* Engine part of Managesieve plugin implementing UI and backend access.
	*
	* Copyright (C) The Roundcube Dev Team
	* Copyright (C) Kolab Systems AG
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program. If not, see http://www.gnu.org/licenses/.
	*/

	class rcube_sieve_engine
	{
	protected $rc;
	protected $sieve;
	protected $errors;
	protected $form;
	protected $list;
	protected $tips = array();
	protected $script = array();
	protected $exts = array();
	protected $active = array();
	protected $headers = array();
	protected $disabled_actions = array();
	protected $addr_headers = array(
	// Required
	"from", "to", "cc", "bcc", "sender", "resent-from", "resent-to",
	// Additional (RFC 822 / RFC 2822)
	"reply-to", "resent-reply-to", "resent-sender", "resent-cc", "resent-bcc",
	// Non-standard (RFC 2076, draft-palme-mailext-headers-08.txt)
	"for-approval", "for-handling", "for-comment", "apparently-to", "errors-to",
	"delivered-to", "return-receipt-to", "x-admin", "read-receipt-to",
	"x-confirm-reading-to", "return-receipt-requested",
	"registered-mail-reply-requested-by", "mail-followup-to", "mail-reply-to",
	"abuse-reports-to", "x-complaints-to", "x-report-abuse-to",
	// Undocumented
	"x-beenthere",
	);
	protected $notify_methods = array(
	'mailto',
	// 'sms',
	// 'tel',
	);
	protected $notify_importance_options = array(
	3 => 'notifyimportancelow',
	2 => 'notifyimportancenormal',
	1 => 'notifyimportancehigh'
	);

	- const VERSION = '9.2';
	+ const VERSION = '9.3';
	const PROGNAME = 'Roundcube (Managesieve)';
	const PORT = 4190;


	/**
	* Class constructor
	*/
	function __construct($plugin)
	{
	$this->rc = rcube::get_instance();
	$this->plugin = $plugin;
	$this->headers = $this->get_default_headers();
	}

	/**
	* Loads configuration, initializes plugin (including sieve connection)
	*/
	function start($mode = null)
	{
	// register UI objects
	$this->rc->output->add_handlers(array(
	'filterslist' => array($this, 'filters_list'),
	'filtersetslist' => array($this, 'filtersets_list'),
	'filterform' => array($this, 'filter_form'),
	'filtersetform' => array($this, 'filterset_form'),
	'filterseteditraw' => array($this, 'filterset_editraw'),
	));

	$this->disabled_actions = (array) $this->rc->config->get('managesieve_disabled_actions');

	// connect to managesieve server
	$error = $this->connect($_SESSION['username'], $this->rc->decrypt($_SESSION['password']));

	// load current/active script
	if (!$error) {
	// Get list of scripts
	$list = $this->list_scripts();

	// reset current script when entering filters UI (#1489412)
	if ($this->rc->action == 'plugin.managesieve') {
	$this->rc->session->remove('managesieve_current');
	}

	if ($mode != 'vacation' && $mode != 'forward') {
	if (!empty($_GET['_set']) \|\| !empty($_POST['_set'])) {
	$script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_GPC, true);
	}
	else if (!empty($_SESSION['managesieve_current'])) {
	$script_name = $_SESSION['managesieve_current'];
	}
	}

	$error = $this->load_script($script_name);
	}

	// finally set script objects
	if ($error) {
	switch ($error) {
	case rcube_sieve::ERROR_CONNECTION:
	case rcube_sieve::ERROR_LOGIN:
	$this->rc->output->show_message('managesieve.filterconnerror', 'error');
	break;

	default:
	$this->rc->output->show_message('managesieve.filterunknownerror', 'error');
	break;
	}

	// reload interface in case of possible error when specified script wasn't found (#1489412)
	if ($script_name !== null && !empty($list) && !in_array($script_name, $list)) {
	$this->rc->output->command('reload', 500);
	}

	// to disable 'Add filter' button set env variable
	$this->rc->output->set_env('filterconnerror', true);
	$this->script = array();
	}
	else {
	$this->exts = $this->sieve->get_extensions();
	$this->init_script();
	$this->rc->output->set_env('currentset', $this->sieve->current);
	$_SESSION['managesieve_current'] = $this->sieve->current;
	}

	$this->rc->output->set_env('raw_sieve_editor', $this->rc->config->get('managesieve_raw_editor', true));
	$this->rc->output->set_env('managesieve_disabled_actions', $this->disabled_actions);
	if (in_array('list_sets', $this->disabled_actions))
	$this->rc->output->set_env('managesieve_no_set_list', true);

	return $error;
	}

	/**
	* Connect to configured managesieve server
	*
	* @param string $username User login
	* @param string $password User password
	*
	* @return int Connection status: 0 on success, >0 on failure
	*/
	public function connect($username, $password)
	{
	// Get connection parameters
	$host = $this->rc->config->get('managesieve_host', 'localhost');
	$port = $this->rc->config->get('managesieve_port');
	$tls = $this->rc->config->get('managesieve_usetls', false);

	$host = rcube_utils::parse_host($host);
	$host = rcube_utils::idn_to_ascii($host);

	// remove tls:// prefix, set TLS flag
	if (($host = preg_replace('\|^tls://\|i', '', $host, 1, $cnt)) && $cnt) {
	$tls = true;
	}

	if (empty($port)) {
	$port = getservbyname('sieve', 'tcp') ?: self::PORT;
	}

	$plugin = $this->rc->plugins->exec_hook('managesieve_connect', array(
	'user' => $username,
	'password' => $password,
	'host' => $host,
	'port' => $port,
	'usetls' => $tls,
	'auth_type' => $this->rc->config->get('managesieve_auth_type'),
	'disabled' => $this->rc->config->get('managesieve_disabled_extensions'),
	'debug' => $this->rc->config->get('managesieve_debug', false),
	'auth_cid' => $this->rc->config->get('managesieve_auth_cid'),
	'auth_pw' => $this->rc->config->get('managesieve_auth_pw'),
	'socket_options' => $this->rc->config->get('managesieve_conn_options')
	));

	// Handle per-host socket options
	rcube_utils::parse_socket_options($plugin['socket_options'], $plugin['host']);

	// try to connect to managesieve server and to fetch the script
	$this->sieve = new rcube_sieve(
	$plugin['user'],
	$plugin['password'],
	$plugin['host'],
	$plugin['port'],
	$plugin['auth_type'],
	$plugin['usetls'],
	$plugin['disabled'],
	$plugin['debug'],
	$plugin['auth_cid'],
	$plugin['auth_pw'],
	$plugin['socket_options'],
	$plugin['gssapi_context'],
	$plugin['gssapi_cn']
	);

	$error = $this->sieve->error();

	if ($error) {
	rcube::raise_error(array(
	'code' => 403,
	'file' => __FILE__,
	'line' => __LINE__,
	'message' => "Unable to connect to managesieve on $host:$port"
	), true, false);
	}

	return $error;
	}

	/**
	* Load specified (or active) script
	*
	* @param string $script_name Optional script name
	*
	* @return int Connection status: 0 on success, >0 on failure
	*/
	protected function load_script($script_name = null)
	{
	// Get list of scripts
	$list = $this->list_scripts();

	if ($script_name === null \|\| $script_name === '') {
	// get (first) active script
	if (!empty($this->active)) {
	$script_name = $this->active[0];
	}
	else if ($list) {
	$script_name = $list[0];
	}
	// create a new (initial) script
	else {
	// if script not exists build default script contents
	$script_file = $this->rc->config->get('managesieve_default');
	$script_name = $this->rc->config->get('managesieve_script_name');

	if (empty($script_name)) {
	$script_name = 'roundcube';
	}

	if ($script_file && is_readable($script_file)) {
	$content = file_get_contents($script_file);
	}

	// add script and set it active
	if ($this->sieve->save_script($script_name, $content)) {
	$this->activate_script($script_name);
	$this->list[] = $script_name;
	}
	}
	}

	if ($script_name) {
	$this->sieve->load($script_name);
	}

	return $this->sieve->error();
	}

	/**
	* User interface actions handler
	*/
	function actions()
	{
	$error = $this->start();

	// Handle user requests
	if ($action = rcube_utils::get_input_value('_act', rcube_utils::INPUT_GPC)) {
	$fid = (int) rcube_utils::get_input_value('_fid', rcube_utils::INPUT_POST);

	if ($action == 'delete' && !$error) {
	if (!in_array('delete_rule', $this->disabled_actions)) {
	if (isset($this->script[$fid])) {
	if ($this->sieve->script->delete_rule($fid))
	$result = $this->save_script();

	if ($result === true) {
	$this->rc->output->show_message('managesieve.filterdeleted', 'confirmation');
	$this->rc->output->command('managesieve_updatelist', 'del', array('id' => $fid));
	}
	else {
	$this->rc->output->show_message('managesieve.filterdeleteerror', 'error');
	}
	}
	}
	else {
	$this->rc->output->show_message('managesieve.disabledaction', 'error');
	}
	}
	else if ($action == 'move' && !$error) {
	if (isset($this->script[$fid])) {
	$to = (int) rcube_utils::get_input_value('_to', rcube_utils::INPUT_POST);
	$rule = $this->script[$fid];

	// remove rule
	unset($this->script[$fid]);
	$this->script = array_values($this->script);

	// add at target position
	if ($to >= count($this->script)) {
	$this->script[] = $rule;
	}
	else {
	$script = array();
	foreach ($this->script as $idx => $r) {
	if ($idx == $to)
	$script[] = $rule;
	$script[] = $r;
	}
	$this->script = $script;
	}

	$this->sieve->script->content = $this->script;
	$result = $this->save_script();

	if ($result === true) {
	$result = $this->list_rules();

	$this->rc->output->show_message('managesieve.moved', 'confirmation');
	$this->rc->output->command('managesieve_updatelist', 'list',
	array('list' => $result, 'clear' => true, 'set' => $to));
	}
	else {
	$this->rc->output->show_message('managesieve.moveerror', 'error');
	}
	}
	}
	else if ($action == 'act' && !$error) {
	if (isset($this->script[$fid])) {
	$rule = $this->script[$fid];
	$disabled = !empty($rule['disabled']);
	$rule['disabled'] = !$disabled;
	$result = $this->sieve->script->update_rule($fid, $rule);

	if ($result !== false)
	$result = $this->save_script();

	if ($result === true) {
	if ($rule['disabled'])
	$this->rc->output->show_message('managesieve.deactivated', 'confirmation');
	else
	$this->rc->output->show_message('managesieve.activated', 'confirmation');
	$this->rc->output->command('managesieve_updatelist', 'update',
	array('id' => $fid, 'disabled' => $rule['disabled']));
	}
	else {
	if ($rule['disabled'])
	$this->rc->output->show_message('managesieve.deactivateerror', 'error');
	else
	$this->rc->output->show_message('managesieve.activateerror', 'error');
	}
	}
	}
	else if ($action == 'setact' && !$error) {
	if (!in_array('enable_disable_set', $this->disabled_actions)) {
	$script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_POST, true);
	$result = $this->activate_script($script_name);
	$kep14 = $this->rc->config->get('managesieve_kolab_master');

	if ($result === true) {
	$this->rc->output->set_env('active_sets', $this->active);
	$this->rc->output->show_message('managesieve.setactivated', 'confirmation');
	$this->rc->output->command('managesieve_updatelist', 'setact',
	array('name' => $script_name, 'active' => true, 'all' => !$kep14));
	}
	else {
	$this->rc->output->show_message('managesieve.setactivateerror', 'error');
	}
	}
	else {
	$this->rc->output->show_message('managesieve.disabledaction', 'error');
	}
	}
	else if ($action == 'deact' && !$error) {
	if (!in_array('enable_disable_set', $this->disabled_actions)) {
	$script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_POST, true);
	$result = $this->deactivate_script($script_name);

	if ($result === true) {
	$this->rc->output->set_env('active_sets', $this->active);
	$this->rc->output->show_message('managesieve.setdeactivated', 'confirmation');
	$this->rc->output->command('managesieve_updatelist', 'setact',
	array('name' => $script_name, 'active' => false));
	}
	else {
	$this->rc->output->show_message('managesieve.setdeactivateerror', 'error');
	}
	}
	else {
	$this->rc->output->show_message('managesieve.disabledaction', 'error');
	}
	}
	else if ($action == 'setdel' && !$error) {
	if (!in_array('delete_set', $this->disabled_actions)) {
	$script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_POST, true);
	$result = $this->remove_script($script_name);

	if ($result === true) {
	$this->rc->output->show_message('managesieve.setdeleted', 'confirmation');
	$this->rc->output->command('managesieve_updatelist', 'setdel',
	array('name' => $script_name));
	$this->rc->session->remove('managesieve_current');
	}
	else {
	$this->rc->output->show_message('managesieve.setdeleteerror', 'error');
	}
	}
	else {
	$this->rc->output->show_message('managesieve.disabledaction', 'error');
	}
	}
	else if ($action == 'setget') {
	if (!in_array('download_set', $this->disabled_actions)) {
	$this->rc->request_security_check(rcube_utils::INPUT_GET);

	$script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_GPC, true);
	$script = $this->sieve->get_script($script_name);

	if ($script !== false) {
	$this->rc->output->download_headers($script_name . '.txt', array('length' => strlen($script)));
	echo $script;
	}

	exit;
	}
	}
	else if ($action == 'list') {
	$result = $this->list_rules();

	$this->rc->output->command('managesieve_updatelist', 'list', array('list' => $result));
	}
	else if ($action == 'ruleadd') {
	$rid = rcube_utils::get_input_value('_rid', rcube_utils::INPUT_POST);
	$id = $this->genid();
	$content = $this->rule_div($fid, $id, false, $_SESSION['managesieve-compact-form']);

	$this->rc->output->command('managesieve_rulefill', $content, $id, $rid);
	}
	else if ($action == 'actionadd') {
	$aid = rcube_utils::get_input_value('_aid', rcube_utils::INPUT_POST);
	$id = $this->genid();
	$content = $this->action_div($fid, $id, false);

	$this->rc->output->command('managesieve_actionfill', $content, $id, $aid);
	}
	else if ($action == 'addresses') {
	$aid = rcube_utils::get_input_value('_aid', rcube_utils::INPUT_POST);

	$this->rc->output->command('managesieve_vacation_addresses_update', $aid, $this->user_emails());
	}

	$this->rc->output->send();
	}
	else if ($this->rc->task == 'mail') {
	// Initialize the form
	$rules = rcube_utils::get_input_value('r', rcube_utils::INPUT_GET);
	if (!empty($rules)) {
	$tests = array();
	foreach ($rules as $rule) {
	list($header, $value) = explode(':', $rule, 2);
	$tests[] = array(
	'type' => 'contains',
	'test' => 'header',
	'arg1' => $header,
	'arg2' => $value,
	);
	}

	$this->form = array(
	'join' => count($tests) > 1 ? 'allof' : 'anyof',
	'name' => '',
	'tests' => $tests,
	'actions' => array(
	0 => array('type' => 'fileinto'),
	1 => array('type' => 'stop'),
	),
	);
	}
	}

	$this->send();
	}

	function saveraw()
	{
	// Init plugin and handle managesieve connection
	$error = $this->start();

	$script_name = rcube_utils::get_input_value('_set', rcube_utils::INPUT_POST);

	$result = $this->sieve->save_script($script_name, $_POST['rawsetcontent']);

	if ($result === false) {
	$this->rc->output->show_message('managesieve.filtersaveerror', 'error');
	$errorLines = $this->sieve->get_error_lines();
	if (count($errorLines) > 0) {
	$this->rc->output->set_env("sieve_errors", $errorLines);
	}
	}
	else {
	$this->rc->output->show_message('managesieve.setupdated', 'confirmation');
	$this->rc->output->command('parent.managesieve_updatelist', 'refresh');
	}

	$this->send();
	}

	function save()
	{
	// Init plugin and handle managesieve connection
	$error = $this->start();

	// get request size limits (#1488648)
	$max_post = max(array(
	ini_get('max_input_vars'),
	ini_get('suhosin.request.max_vars'),
	ini_get('suhosin.post.max_vars'),
	));
	$max_depth = max(array(
	ini_get('suhosin.request.max_array_depth'),
	ini_get('suhosin.post.max_array_depth'),
	));

	// check request size limit
	if ($max_post && count($_POST, COUNT_RECURSIVE) >= $max_post) {
	rcube::raise_error(array(
	'code' => 500, 'type' => 'php',
	'file' => __FILE__, 'line' => __LINE__,
	'message' => "Request size limit exceeded (one of max_input_vars/suhosin.request.max_vars/suhosin.post.max_vars)"
	), true, false);
	$this->rc->output->show_message('managesieve.filtersaveerror', 'error');
	}
	// check request depth limits
	else if ($max_depth && count($_POST['_header']) > $max_depth) {
	rcube::raise_error(array(
	'code' => 500, 'type' => 'php',
	'file' => __FILE__, 'line' => __LINE__,
	'message' => "Request size limit exceeded (one of suhosin.request.max_array_depth/suhosin.post.max_array_depth)"
	), true, false);
	$this->rc->output->show_message('managesieve.filtersaveerror', 'error');
	}
	// filters set add action
	else if (!empty($_POST['_newset'])) {
	$name = rcube_utils::get_input_value('_name', rcube_utils::INPUT_POST, true);
	$copy = rcube_utils::get_input_value('_copy', rcube_utils::INPUT_POST, true);
	$from = rcube_utils::get_input_value('_from', rcube_utils::INPUT_POST);
	$exceptions = $this->rc->config->get('managesieve_filename_exceptions');
	$kolab = $this->rc->config->get('managesieve_kolab_master');
	$name_uc = mb_strtolower($name);
	$list = $this->list_scripts();

	if (in_array('new_set', $this->disabled_actions)) {
	$error = 'managesieve.disabledaction';
	}
	else if (!$name) {
	$this->errors['name'] = $this->plugin->gettext('cannotbeempty');
	}
	else if (mb_strlen($name) > 128) {
	$this->errors['name'] = $this->plugin->gettext('nametoolong');
	}
	else if (!empty($exceptions) && in_array($name, (array)$exceptions)) {
	$this->errors['name'] = $this->plugin->gettext('namereserved');
	}
	else if (!empty($kolab) && in_array($name_uc, array('MASTER', 'USER', 'MANAGEMENT'))) {
	$this->errors['name'] = $this->plugin->gettext('namereserved');
	}
	else if (in_array($name, $list)) {
	$this->errors['name'] = $this->plugin->gettext('setexist');
	}
	else if ($from == 'file') {
	// from file
	if (is_uploaded_file($_FILES['_file']['tmp_name'])) {
	$file = file_get_contents($_FILES['_file']['tmp_name']);
	$file = preg_replace('/\r/', '', $file);
	// for security don't save script directly
	// check syntax before, like this...
	$this->sieve->load_script($file);
	if (!$this->save_script($name)) {
	$this->errors['file'] = $this->plugin->gettext('setcreateerror');
	}
	}
	else { // upload failed
	$err = $_FILES['_file']['error'];

	if ($err == UPLOAD_ERR_INI_SIZE \|\| $err == UPLOAD_ERR_FORM_SIZE) {
	$msg = $this->rc->gettext(array('name' => 'filesizeerror',
	'vars' => array('size' =>
	$this->rc->show_bytes(rcube_utils::max_upload_size()))));
	}
	else {
	$this->errors['file'] = $this->plugin->gettext('fileuploaderror');
	}
	}
	}
	else if (!$this->sieve->copy($name, $from == 'set' ? $copy : '')) {
	$error = 'managesieve.setcreateerror';
	}

	if (!$error && empty($this->errors)) {
	// Find position of the new script on the list
	$list[] = $name;
	asort($list, SORT_LOCALE_STRING);
	$list = array_values($list);
	$index = array_search($name, $list);

	$this->rc->output->show_message('managesieve.setcreated', 'confirmation');
	$this->rc->output->command('parent.managesieve_updatelist', 'setadd',
	array('name' => $name, 'index' => $index));
	}
	else if ($msg) {
	$this->rc->output->command('display_message', $msg, 'error');
	}
	else if ($error) {
	$this->rc->output->show_message($error, 'error');
	}
	}
	// filter add/edit action
	else if (isset($_POST['_name'])) {
	$name = trim(rcube_utils::get_input_value('_name', rcube_utils::INPUT_POST, true));
	$fid = trim(rcube_utils::get_input_value('_fid', rcube_utils::INPUT_POST));
	$join = trim(rcube_utils::get_input_value('_join', rcube_utils::INPUT_POST));

	// and arrays
	$headers = rcube_utils::get_input_value('_header', rcube_utils::INPUT_POST);
	$cust_headers = rcube_utils::get_input_value('_custom_header', rcube_utils::INPUT_POST);
	$cust_vars = rcube_utils::get_input_value('_custom_var', rcube_utils::INPUT_POST);
	$ops = rcube_utils::get_input_value('_rule_op', rcube_utils::INPUT_POST);
	$sizeops = rcube_utils::get_input_value('_rule_size_op', rcube_utils::INPUT_POST);
	$sizeitems = rcube_utils::get_input_value('_rule_size_item', rcube_utils::INPUT_POST);
	$sizetargets = rcube_utils::get_input_value('_rule_size_target', rcube_utils::INPUT_POST);
	$targets = rcube_utils::get_input_value('_rule_target', rcube_utils::INPUT_POST, true);
	$mods = rcube_utils::get_input_value('_rule_mod', rcube_utils::INPUT_POST);
	$mod_types = rcube_utils::get_input_value('_rule_mod_type', rcube_utils::INPUT_POST);
	$body_trans = rcube_utils::get_input_value('_rule_trans', rcube_utils::INPUT_POST);
	$body_types = rcube_utils::get_input_value('_rule_trans_type', rcube_utils::INPUT_POST, true);
	$comparators = rcube_utils::get_input_value('_rule_comp', rcube_utils::INPUT_POST);
	$indexes = rcube_utils::get_input_value('_rule_index', rcube_utils::INPUT_POST);
	$lastindexes = rcube_utils::get_input_value('_rule_index_last', rcube_utils::INPUT_POST);
	$dateheaders = rcube_utils::get_input_value('_rule_date_header', rcube_utils::INPUT_POST);
	$dateparts = rcube_utils::get_input_value('_rule_date_part', rcube_utils::INPUT_POST);
	$mime_parts = rcube_utils::get_input_value('_rule_mime_part', rcube_utils::INPUT_POST);
	$mime_types = rcube_utils::get_input_value('_rule_mime_type', rcube_utils::INPUT_POST);
	$mime_params = rcube_utils::get_input_value('_rule_mime_param', rcube_utils::INPUT_POST, true);
	$message = rcube_utils::get_input_value('_rule_message', rcube_utils::INPUT_POST);
	$dup_handles = rcube_utils::get_input_value('_rule_duplicate_handle', rcube_utils::INPUT_POST, true);
	$dup_headers = rcube_utils::get_input_value('_rule_duplicate_header', rcube_utils::INPUT_POST, true);
	$dup_uniqueids = rcube_utils::get_input_value('_rule_duplicate_uniqueid', rcube_utils::INPUT_POST, true);
	$dup_seconds = rcube_utils::get_input_value('_rule_duplicate_seconds', rcube_utils::INPUT_POST);
	$dup_lasts = rcube_utils::get_input_value('_rule_duplicate_last', rcube_utils::INPUT_POST);
	$act_types = rcube_utils::get_input_value('_action_type', rcube_utils::INPUT_POST, true);
	$mailboxes = rcube_utils::get_input_value('_action_mailbox', rcube_utils::INPUT_POST, true);
	$act_targets = rcube_utils::get_input_value('_action_target', rcube_utils::INPUT_POST, true);
	$domain_targets = rcube_utils::get_input_value('_action_target_domain', rcube_utils::INPUT_POST);
	$area_targets = rcube_utils::get_input_value('_action_target_area', rcube_utils::INPUT_POST, true);
	$reasons = rcube_utils::get_input_value('_action_reason', rcube_utils::INPUT_POST, true);
	$addresses = rcube_utils::get_input_value('_action_addresses', rcube_utils::INPUT_POST, true);
	$intervals = rcube_utils::get_input_value('_action_interval', rcube_utils::INPUT_POST);
	$interval_types = rcube_utils::get_input_value('_action_interval_type', rcube_utils::INPUT_POST);
	$from = rcube_utils::get_input_value('_action_from', rcube_utils::INPUT_POST);
	$subject = rcube_utils::get_input_value('_action_subject', rcube_utils::INPUT_POST, true);
	$flags = rcube_utils::get_input_value('_action_flags', rcube_utils::INPUT_POST);
	$varnames = rcube_utils::get_input_value('_action_varname', rcube_utils::INPUT_POST);
	$varvalues = rcube_utils::get_input_value('_action_varvalue', rcube_utils::INPUT_POST);
	$varmods = rcube_utils::get_input_value('_action_varmods', rcube_utils::INPUT_POST);
	$notifymethods = rcube_utils::get_input_value('_action_notifymethod', rcube_utils::INPUT_POST);
	$notifytargets = rcube_utils::get_input_value('_action_notifytarget', rcube_utils::INPUT_POST, true);
	$notifyoptions = rcube_utils::get_input_value('_action_notifyoption', rcube_utils::INPUT_POST, true);
	$notifymessages = rcube_utils::get_input_value('_action_notifymessage', rcube_utils::INPUT_POST, true);
	$notifyfrom = rcube_utils::get_input_value('_action_notifyfrom', rcube_utils::INPUT_POST);
	$notifyimp = rcube_utils::get_input_value('_action_notifyimportance', rcube_utils::INPUT_POST);
	$addheader_name = rcube_utils::get_input_value('_action_addheader_name', rcube_utils::INPUT_POST);
	$addheader_value = rcube_utils::get_input_value('_action_addheader_value', rcube_utils::INPUT_POST, true);
	$addheader_pos = rcube_utils::get_input_value('_action_addheader_pos', rcube_utils::INPUT_POST);
	$delheader_name = rcube_utils::get_input_value('_action_delheader_name', rcube_utils::INPUT_POST);
	$delheader_value = rcube_utils::get_input_value('_action_delheader_value', rcube_utils::INPUT_POST, true);
	$delheader_pos = rcube_utils::get_input_value('_action_delheader_pos', rcube_utils::INPUT_POST);
	$delheader_index = rcube_utils::get_input_value('_action_delheader_index', rcube_utils::INPUT_POST);
	$delheader_op = rcube_utils::get_input_value('_action_delheader_op', rcube_utils::INPUT_POST);
	$delheader_comp = rcube_utils::get_input_value('_action_delheader_comp', rcube_utils::INPUT_POST);

	$this->form['disabled'] = !empty($_POST['_disabled']);
	$this->form['join'] = $join == 'allof';
	$this->form['name'] = $name;
	$this->form['tests'] = array();
	$this->form['actions'] = array();

	if ($name == '')
	$this->errors['name'] = $this->plugin->gettext('cannotbeempty');
	else {
	foreach ($this->script as $idx => $rule)
	if($rule['name'] == $name && $idx != $fid) {
	$this->errors['name'] = $this->plugin->gettext('ruleexist');
	break;
	}
	}

	$i = 0;
	// rules
	if ($join == 'any') {
	$this->form['tests'][0]['test'] = 'true';
	}
	else {
	foreach ($headers as $idx => $header) {
	// targets are indexed differently (assume form order)
	$target = $this->strip_value($targets[$idx], true);
	$header = $this->strip_value($header);
	$operator = $this->strip_value($ops[$idx]);
	$comparator = $this->strip_value($comparators[$idx]);

	if ($header == 'size') {
	$sizeop = $this->strip_value($sizeops[$idx]);
	$sizeitem = $this->strip_value($sizeitems[$idx]);
	$sizetarget = $this->strip_value($sizetargets[$idx]);

	$this->form['tests'][$i]['test'] = 'size';
	$this->form['tests'][$i]['type'] = $sizeop;
	$this->form['tests'][$i]['arg'] = $sizetarget;

	if ($sizetarget == '')
	$this->errors['tests'][$i]['sizetarget'] = $this->plugin->gettext('cannotbeempty');
	else if (!preg_match('/^[0-9]+(K\|M\|G)?$/i', $sizetarget.$sizeitem, $m)) {
	$this->errors['tests'][$i]['sizetarget'] = $this->plugin->gettext('forbiddenchars');
	$this->form['tests'][$i]['item'] = $sizeitem;
	}
	else
	$this->form['tests'][$i]['arg'] .= $m[1];
	}
	else if ($header == 'currentdate') {
	$datepart = $this->strip_value($dateparts[$idx]);

	if (preg_match('/^not/', $operator))
	$this->form['tests'][$i]['not'] = true;
	$type = preg_replace('/^not/', '', $operator);

	if ($type == 'exists') {
	$this->errors['tests'][$i]['op'] = true;
	}

	$this->form['tests'][$i]['test'] = 'currentdate';
	$this->form['tests'][$i]['type'] = $type;
	$this->form['tests'][$i]['part'] = $datepart;
	$this->form['tests'][$i]['arg'] = $target;

	if ($type != 'exists') {
	if (empty($target)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('cannotbeempty');
	}
	else if (strpos($type, 'count-') === 0) {
	foreach ($target as $arg) {
	if (preg_match('/[^0-9]/', $arg)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('forbiddenchars');
	}
	}
	}
	else if (strpos($type, 'value-') === 0) {
	// Some date/time formats do not support i;ascii-numeric comparator
	if ($comparator == 'i;ascii-numeric' && in_array($datepart, array('date', 'time', 'iso8601', 'std11'))) {
	$comparator = '';
	}
	}

	if (!preg_match('/^(regex\|matches\|count-)/', $type) && !empty($target)) {
	foreach ($target as $arg) {
	if (!$this->validate_date_part($datepart, $arg)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('invaliddateformat');
	break;
	}
	}
	}
	}
	}
	else if ($header == 'date') {
	$datepart = $this->strip_value($dateparts[$idx]);
	$dateheader = $this->strip_value($dateheaders[$idx]);
	$index = $this->strip_value($indexes[$idx]);
	$indexlast = $this->strip_value($lastindexes[$idx]);

	if (preg_match('/^not/', $operator)) {
	$this->form['tests'][$i]['not'] = true;
	}

	$type = preg_replace('/^not/', '', $operator);

	if ($type == 'exists') {
	$this->errors['tests'][$i]['op'] = true;
	}

	if (!empty($index) && $mod != 'envelope') {
	$this->form['tests'][$i]['index'] = intval($index);
	$this->form['tests'][$i]['last'] = !empty($indexlast);
	}

	if (empty($dateheader)) {
	$dateheader = 'Date';
	}
	else if (!preg_match('/^[\x21-\x39\x41-\x7E]+$/i', $dateheader)) {
	$this->errors['tests'][$i]['dateheader'] = $this->plugin->gettext('forbiddenchars');
	}

	$this->form['tests'][$i]['test'] = 'date';
	$this->form['tests'][$i]['type'] = $type;
	$this->form['tests'][$i]['part'] = $datepart;
	$this->form['tests'][$i]['arg'] = $target;
	$this->form['tests'][$i]['header'] = $dateheader;

	if ($type != 'exists') {
	if (empty($target)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('cannotbeempty');
	}
	else if (strpos($type, 'count-') === 0) {
	foreach ($target as $arg) {
	if (preg_match('/[^0-9]/', $arg)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('forbiddenchars');
	}
	}
	}
	else if (strpos($type, 'value-') === 0) {
	// Some date/time formats do not support i;ascii-numeric comparator
	if ($comparator == 'i;ascii-numeric' && in_array($datepart, array('date', 'time', 'iso8601', 'std11'))) {
	$comparator = '';
	}
	}

	if (!empty($target) && !preg_match('/^(regex\|matches\|count-)/', $type)) {
	foreach ($target as $arg) {
	if (!$this->validate_date_part($datepart, $arg)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('invaliddateformat');
	break;
	}
	}
	}
	}
	}
	else if ($header == 'body') {
	$trans = $this->strip_value($body_trans[$idx]);
	$trans_type = $this->strip_value($body_types[$idx], true);

	if (preg_match('/^not/', $operator))
	$this->form['tests'][$i]['not'] = true;
	$type = preg_replace('/^not/', '', $operator);

	if ($type == 'exists') {
	$this->errors['tests'][$i]['op'] = true;
	}

	$this->form['tests'][$i]['test'] = 'body';
	$this->form['tests'][$i]['type'] = $type;
	$this->form['tests'][$i]['arg'] = $target;

	if (empty($target) && $type != 'exists') {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('cannotbeempty');
	}
	else if (preg_match('/^(value\|count)-/', $type)) {
	foreach ($target as $target_value) {
	if (preg_match('/[^0-9]/', $target_value)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('forbiddenchars');
	}
	}
	}

	$this->form['tests'][$i]['part'] = $trans;
	if ($trans == 'content') {
	$this->form['tests'][$i]['content'] = $trans_type;
	}
	}
	else if ($header == 'message') {
	$test = $this->strip_value($message[$idx]);

	if (preg_match('/^not/', $test)) {
	$this->form['tests'][$i]['not'] = true;
	$test = substr($test, 3);
	}

	$this->form['tests'][$i]['test'] = $test;

	if ($test == 'duplicate') {
	$this->form['tests'][$i]['last'] = !empty($dup_lasts[$idx]);
	$this->form['tests'][$i]['handle'] = trim($dup_handles[$idx]);
	$this->form['tests'][$i]['header'] = trim($dup_headers[$idx]);
	$this->form['tests'][$i]['uniqueid'] = trim($dup_uniqueids[$idx]);
	$this->form['tests'][$i]['seconds'] = trim($dup_seconds[$idx]);

	if ($this->form['tests'][$i]['seconds']
	&& preg_match('/[^0-9]/', $this->form['tests'][$i]['seconds'])
	) {
	$this->errors['tests'][$i]['duplicate_seconds'] = $this->plugin->gettext('forbiddenchars');
	}

	if ($this->form['tests'][$i]['header'] && $this->form['tests'][$i]['uniqueid']) {
	$this->errors['tests'][$i]['duplicate_uniqueid'] = $this->plugin->gettext('duplicate.conflict.err');
	}
	}
	}
	else {
	$cust_header = $headers = $this->strip_value($cust_headers[$idx]);
	$mod = $this->strip_value($mods[$idx]);
	$mod_type = $this->strip_value($mod_types[$idx]);
	$index = $this->strip_value($indexes[$idx]);
	$indexlast = $this->strip_value($lastindexes[$idx]);
	$mime_param = $this->strip_value($mime_params[$idx]);
	$mime_type = $mime_types[$idx];
	$mime_part = $mime_parts[$idx];

	if ($header == 'string') {
	$cust_var = $headers = $this->strip_value($cust_vars[$idx]);
	}

	if (preg_match('/^not/', $operator))
	$this->form['tests'][$i]['not'] = true;
	$type = preg_replace('/^not/', '', $operator);

	if (!empty($index) && $mod != 'envelope') {
	$this->form['tests'][$i]['index'] = intval($index);
	$this->form['tests'][$i]['last'] = !empty($indexlast);
	}

	if ($header == '...' \|\| $header == 'string') {
	if (!count($headers))
	$this->errors['tests'][$i]['header'] = $this->plugin->gettext('cannotbeempty');
	else if ($header == '...') {
	foreach ($headers as $hr) {
	// RFC2822: printable ASCII except colon
	if (!preg_match('/^[\x21-\x39\x41-\x7E]+$/i', $hr)) {
	$this->errors['tests'][$i]['header'] = $this->plugin->gettext('forbiddenchars');
	}
	}
	}

	if (empty($this->errors['tests'][$i]['header']))
	$cust_header = $cust_var = (is_array($headers) && count($headers) == 1) ? $headers[0] : $headers;
	}

	$test = $header == 'string' ? 'string' : 'header';
	$header = $header == 'string' ? $cust_var : $header;
	$header = $header == '...' ? $cust_header : $header;

	if (is_array($header)) {
	foreach ($header as $h_index => $val) {
	if (isset($this->headers[$val])) {
	$header[$h_index] = $this->headers[$val];
	}
	}
	}

	if ($type == 'exists') {
	$this->form['tests'][$i]['test'] = 'exists';
	$this->form['tests'][$i]['arg'] = $header;
	}
	else {
	if ($mod == 'address' \|\| $mod == 'envelope') {
	$found = false;
	if (empty($this->errors['tests'][$i]['header'])) {
	foreach ((array)$header as $hdr) {
	if (!in_array(strtolower(trim($hdr)), $this->addr_headers))
	$found = true;
	}
	}
	if (!$found)
	$test = $mod;
	}

	$this->form['tests'][$i]['type'] = $type;
	$this->form['tests'][$i]['test'] = $test;
	$this->form['tests'][$i]['arg1'] = $header;
	$this->form['tests'][$i]['arg2'] = $target;

	if (empty($target)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('cannotbeempty');
	}
	else if (preg_match('/^(value\|count)-/', $type)) {
	foreach ($target as $target_value) {
	if (preg_match('/[^0-9]/', $target_value)) {
	$this->errors['tests'][$i]['target'] = $this->plugin->gettext('forbiddenchars');
	}
	}
	}

	if ($mod) {
	$this->form['tests'][$i]['part'] = $mod_type;
	}
	}

	if ($test == 'header') {
	if (in_array($mime_type, array('type', 'subtype', 'contenttype', 'param'))) {
	$this->form['tests'][$i]['mime-' . $mime_type] = true;
	if ($mime_type == 'param') {
	if (empty($mime_param)) {
	$this->errors['tests'][$i]['mime-param'] = $this->plugin->gettext('cannotbeempty');
	}

	$this->form['tests'][$i]['mime-param'] = $mime_param;
	}
	}

	if ($mime_part == 'anychild') {
	$this->form['tests'][$i]['mime-anychild'] = true;
	}
	}
	}

	if ($header != 'size' && $comparator) {
	$this->form['tests'][$i]['comparator'] = $comparator;
	}

	$i++;
	}
	}

	$i = 0;
	// actions
	foreach ($act_types as $idx => $type) {
	$type = $this->strip_value($type);

	switch ($type) {
	case 'fileinto':
	case 'fileinto_copy':
	$mailbox = $this->strip_value($mailboxes[$idx], false, false);
	$this->form['actions'][$i]['target'] = $this->mod_mailbox($mailbox, 'in');

	if ($type == 'fileinto_copy') {
	$type = 'fileinto';
	$this->form['actions'][$i]['copy'] = true;
	}
	break;

	case 'reject':
	case 'ereject':
	$target = $this->strip_value($area_targets[$idx]);
	$this->form['actions'][$i]['target'] = str_replace("\r\n", "\n", $target);

	// if ($target == '')
	// $this->errors['actions'][$i]['targetarea'] = $this->plugin->gettext('cannotbeempty');
	break;

	case 'redirect':
	case 'redirect_copy':
	$target = $this->strip_value($act_targets[$idx]);
	$domain = $this->strip_value($domain_targets[$idx]);

	// force one of the configured domains
	$domains = (array) $this->rc->config->get('managesieve_domains');
	if (!empty($domains) && !empty($target)) {
	if (!$domain \|\| !in_array($domain, $domains)) {
	$domain = $domains[0];
	}

	$target .= '@' . $domain;
	}

	$this->form['actions'][$i]['target'] = $target;

	if ($target == '')
	$this->errors['actions'][$i]['target'] = $this->plugin->gettext('cannotbeempty');
	else if (!rcube_utils::check_email($target))
	$this->errors['actions'][$i]['target'] = $this->plugin->gettext(!empty($domains) ? 'forbiddenchars' : 'noemailwarning');

	if ($type == 'redirect_copy') {
	$type = 'redirect';
	$this->form['actions'][$i]['copy'] = true;
	}

	break;

	case 'addflag':
	case 'setflag':
	case 'removeflag':
	$_target = array();
	if (empty($flags[$idx])) {
	$this->errors['actions'][$i]['target'] = $this->plugin->gettext('noflagset');
	}
	else {
	foreach ($flags[$idx] as $flag) {
	$_target[] = $this->strip_value($flag);
	}
	}
	$this->form['actions'][$i]['target'] = $_target;
	break;

	case 'addheader':
	case 'deleteheader':
	$this->form['actions'][$i]['name'] = trim($type == 'addheader' ? $addheader_name[$idx] : $delheader_name[$idx]);
	$this->form['actions'][$i]['value'] = $type == 'addheader' ? $addheader_value[$idx] : $delheader_value[$idx];
	$this->form['actions'][$i]['last'] = ($type == 'addheader' ? $addheader_pos[$idx] : $delheader_pos[$idx]) == 'last';

	if (empty($this->form['actions'][$i]['name'])) {
	$this->errors['actions'][$i]['name'] = $this->plugin->gettext('cannotbeempty');
	}
	else if (!preg_match('/^[0-9a-z_-]+$/i', $this->form['actions'][$i]['name'])) {
	$this->errors['actions'][$i]['name'] = $this->plugin->gettext('forbiddenchars');
	}

	if ($type == 'deleteheader') {
	foreach ((array) $this->form['actions'][$i]['value'] as $pidx => $pattern) {
	if (empty($pattern)) {
	unset($this->form['actions'][$i]['value'][$pidx]);
	}
	}

	$this->form['actions'][$i]['match-type'] = $delheader_op[$idx];
	$this->form['actions'][$i]['comparator'] = $delheader_comp[$idx];
	$this->form['actions'][$i]['index'] = $delheader_index[$idx];

	if (empty($this->form['actions'][$i]['index'])) {
	if (!empty($this->form['actions'][$i]['last'])) {
	$this->errors['actions'][$i]['index'] = $this->plugin->gettext('lastindexempty');
	}
	}
	else if (!preg_match('/^[0-9]+$/i', $this->form['actions'][$i]['index'])) {
	$this->errors['actions'][$i]['index'] = $this->plugin->gettext('forbiddenchars');
	}
	}
	else {
	if (empty($this->form['actions'][$i]['value'])) {
	$this->errors['actions'][$i]['value'] = $this->plugin->gettext('cannotbeempty');
	}
	}

	break;

	case 'vacation':
	$reason = $this->strip_value($reasons[$idx]);
	$interval_type = $interval_types[$idx] == 'seconds' ? 'seconds' : 'days';

	$this->form['actions'][$i]['reason'] = str_replace("\r\n", "\n", $reason);
	$this->form['actions'][$i]['from'] = $from[$idx];
	$this->form['actions'][$i]['subject'] = $subject[$idx];
	$this->form['actions'][$i]['addresses'] = $addresses[$idx];
	$this->form['actions'][$i][$interval_type] = $intervals[$idx];
	// @TODO: vacation :mime, :handle

	foreach ((array)$this->form['actions'][$i]['addresses'] as $aidx => $address) {
	$this->form['actions'][$i]['addresses'][$aidx] = $address = trim($address);

	if (empty($address)) {
	unset($this->form['actions'][$i]['addresses'][$aidx]);
	}
	else if (!rcube_utils::check_email($address)) {
	$this->errors['actions'][$i]['addresses'] = $this->plugin->gettext('noemailwarning');
	break;
	}
	}

	if (!empty($this->form['actions'][$i]['from']) && !rcube_utils::check_email($this->form['actions'][$i]['from'])) {
	$this->errors['actions'][$i]['from'] = $this->plugin->gettext('noemailwarning');
	}

	if ($this->form['actions'][$i]['reason'] == '')
	$this->errors['actions'][$i]['reason'] = $this->plugin->gettext('cannotbeempty');
	if ($this->form['actions'][$i][$interval_type] && !preg_match('/^[0-9]+$/', $this->form['actions'][$i][$interval_type]))
	$this->errors['actions'][$i]['interval'] = $this->plugin->gettext('forbiddenchars');
	break;

	case 'set':
	$this->form['actions'][$i]['name'] = $varnames[$idx];
	$this->form['actions'][$i]['value'] = $varvalues[$idx];
	foreach ((array)$varmods[$idx] as $v_m) {
	$this->form['actions'][$i][$v_m] = true;
	}

	if (empty($varnames[$idx])) {
	$this->errors['actions'][$i]['name'] = $this->plugin->gettext('cannotbeempty');
	}
	else if (!preg_match('/^[0-9a-z_]+$/i', $varnames[$idx])) {
	$this->errors['actions'][$i]['name'] = $this->plugin->gettext('forbiddenchars');
	}

	if (!isset($varvalues[$idx]) \|\| $varvalues[$idx] === '') {
	$this->errors['actions'][$i]['value'] = $this->plugin->gettext('cannotbeempty');
	}
	break;

	case 'notify':
	if (empty($notifymethods[$idx])) {
	$this->errors['actions'][$i]['method'] = $this->plugin->gettext('cannotbeempty');
	}
	if (empty($notifytargets[$idx])) {
	$this->errors['actions'][$i]['target'] = $this->plugin->gettext('cannotbeempty');
	}
	if (!empty($notifyfrom[$idx]) && !rcube_utils::check_email($notifyfrom[$idx])) {
	$this->errors['actions'][$i]['from'] = $this->plugin->gettext('noemailwarning');
	}

	// skip empty options
	foreach ((array)$notifyoptions[$idx] as $opt_idx => $opt) {
	if (!strlen(trim($opt))) {
	unset($notifyoptions[$idx][$opt_idx]);
	}
	}

	$this->form['actions'][$i]['method'] = $notifymethods[$idx] . ':' . $notifytargets[$idx];
	$this->form['actions'][$i]['options'] = $notifyoptions[$idx];
	$this->form['actions'][$i]['message'] = $notifymessages[$idx];
	$this->form['actions'][$i]['from'] = $notifyfrom[$idx];
	$this->form['actions'][$i]['importance'] = $notifyimp[$idx];
	break;
	}

	$this->form['actions'][$i]['type'] = $type;
	$i++;
	}

	if (!$this->errors && !$error) {
	// save the script
	if (!isset($this->script[$fid])) {
	$fid = $this->sieve->script->add_rule($this->form);
	$new = true;
	}
	else {
	$fid = $this->sieve->script->update_rule($fid, $this->form);
	}

	if ($fid !== false) {
	$save = $this->save_script();
	}

	if ($save && $fid !== false) {
	$this->rc->output->show_message('managesieve.filtersaved', 'confirmation');
	if ($this->rc->task != 'mail') {
	$this->rc->output->command('parent.managesieve_updatelist',
	isset($new) ? 'add' : 'update',
	array(
	'name' => $this->form['name'],
	'id' => $fid,
	'disabled' => $this->form['disabled']
	));
	}
	else {
	$this->rc->output->command('managesieve_dialog_close');
	$this->rc->output->send('iframe');
	}
	}
	else {
	$this->rc->output->show_message('managesieve.filtersaveerror', 'error');
	}
	}
	else {
	$this->rc->output->show_message('managesieve.filterformerror', 'warning');
	}
	}

	$this->send();
	}

	protected function send()
	{
	// Handle form action
	if (isset($_GET['_framed']) \|\| isset($_POST['_framed'])) {
	if (isset($_GET['_newset']) \|\| isset($_POST['_newset'])) {
	$this->rc->output->send('managesieve.setedit');
	}
	else if (isset($_GET['_seteditraw']) \|\| isset($_POST['_seteditraw'])) {
	$this->rc->output->send('managesieve.seteditraw');
	}
	else {
	$this->rc->output->send('managesieve.filteredit');
	}
	}
	else {
	$this->rc->output->set_pagetitle($this->plugin->gettext('filters'));
	$this->rc->output->send('managesieve.managesieve');
	}
	}

	// return the filters list as HTML table
	function filters_list($attrib)
	{
	// add id to message list table if not specified
	if (!strlen($attrib['id']))
	$attrib['id'] = 'rcmfilterslist';

	// define list of cols to be displayed
	$a_show_cols = array('name');

	$result = $this->list_rules();

	// create XHTML table
	$out = $this->rc->table_output($attrib, $result, $a_show_cols, 'id');

	// set client env
	$this->rc->output->add_gui_object('filterslist', $attrib['id']);
	$this->rc->output->include_script('list.js');

	// add some labels to client
	$this->rc->output->add_label('managesieve.filterdeleteconfirm');

	return $out;
	}

	// return the filters list as <SELECT>
	function filtersets_list($attrib, $no_env = false)
	{
	// add id to message list table if not specified
	if (!strlen($attrib['id'])) {
	$attrib['id'] = 'rcmfiltersetslist';
	}

	$list = $this->list_scripts();

	if ($list) {
	asort($list, SORT_LOCALE_STRING);
	}

	if (!empty($attrib['type']) && $attrib['type'] == 'list') {
	// define list of cols to be displayed
	$a_show_cols = array('name');

	if ($list) {
	foreach ($list as $idx => $set) {
	$scripts['S'.$idx] = $set;
	$result[] = array(
	'name' => $set,
	'id' => 'S'.$idx,
	'class' => !in_array($set, $this->active) ? 'disabled' : '',
	);
	}
	}

	// create XHTML table
	$out = $this->rc->table_output($attrib, $result, $a_show_cols, 'id');

	$this->rc->output->set_env('filtersets', $scripts);
	$this->rc->output->include_script('list.js');
	}
	else {
	$select = new html_select(array('name' => '_set', 'id' => $attrib['id'],
	'onchange' => $this->rc->task != 'mail' ? 'rcmail.managesieve_set()' : ''));

	if ($list) {
	foreach ($list as $set)
	$select->add($set, $set);
	}

	$out = $select->show($this->sieve->current);
	}

	// set client env
	if (!$no_env) {
	$this->rc->output->add_gui_object('filtersetslist', $attrib['id']);
	$this->rc->output->add_label('managesieve.setdeleteconfirm');
	}

	return $out;
	}

	function filterset_editraw($attrib)
	{
	$script_name = isset($_GET['_set']) ? $_GET['_set'] : $_POST['_set'];
	$script = $this->sieve->get_script($script_name);
	$script_post = $_POST['rawsetcontent'];

	$hiddenfields = new html_hiddenfield();
	$hiddenfields->add(array('name' => '_task', 'value' => $this->rc->task));
	$hiddenfields->add(array('name' => '_action', 'value' => 'plugin.managesieve-saveraw'));
	$hiddenfields->add(array('name' => '_set', 'value' => $script_name));
	$hiddenfields->add(array('name' => '_seteditraw', 'value' => 1));
	$hiddenfields->add(array('name' => '_framed', 'value' => ($_POST['_framed'] \|\| $_GET['_framed'] ? 1 : 0)));

	$out = $hiddenfields->show();

	$txtarea = new html_textarea(array(
	'id' => 'rawfiltersettxt',
	'name' => 'rawsetcontent',
	'class' => 'form-control',
	'rows' => '15'
	));

	$out .= $txtarea->show($script_post !== null ? $script_post : ($script !== false ? rtrim($script) : ''));

	$this->rc->output->add_gui_object('sievesetrawform', 'filtersetrawform');
	$this->plugin->include_stylesheet('codemirror/lib/codemirror.css');
	$this->plugin->include_script('codemirror/lib/codemirror.js');
	$this->plugin->include_script('codemirror/addon/selection/active-line.js');
	$this->plugin->include_script('codemirror/mode/sieve/sieve.js');

	if ($script === false) {
	$this->rc->output->show_message('managesieve.filterunknownerror', 'error');
	}

	$out = html::tag('form', $attrib + array(
	'id' => 'filtersetrawform',
	'name' => 'filtersetrawform',
	'action' => './',
	'method' => 'post',
	'enctype' => 'multipart/form-data',
	), $out);

	return str_replace('</form>', '', $out);
	}

	function filterset_form($attrib)
	{
	if (!$attrib['id']) {
	$attrib['id'] = 'rcmfiltersetform';
	}

	$table = new html_table(array('cols' => 2, 'class' => 'propform'));
	$hiddenfields = new html_hiddenfield(array('name' => '_task', 'value' => $this->rc->task));
	$hiddenfields->add(array('name' => '_action', 'value' => 'plugin.managesieve-save'));
	$hiddenfields->add(array('name' => '_framed', 'value' => ($_POST['_framed'] \|\| $_GET['_framed'] ? 1 : 0)));
	$hiddenfields->add(array('name' => '_newset', 'value' => 1));

	$name = rcube_utils::get_input_value('_name', rcube_utils::INPUT_POST);
	$copy = rcube_utils::get_input_value('_copy', rcube_utils::INPUT_POST);
	$selected = rcube_utils::get_input_value('_from', rcube_utils::INPUT_POST);

	// filter set name input
	$input_name = new html_inputfield(array('name' => '_name', 'id' => '_name', 'size' => 30,
	'class' => ($this->errors['name'] ? 'error' : '')));

	$table->add('title', html::label('_name', rcube::Q($this->plugin->gettext('filtersetname'))));
	$table->add(null, $input_name->show($name));

	$filters = '<ul class="proplist">';
	$filters .= '<li>' . html::label('from_none', html::tag('input', array(
	'type' => 'radio',
	'id' => 'from_none',
	'name' => '_from',
	'value' => 'none',
	'checked' => !$selected \|\| $selected == 'none'
	)) . rcube::Q($this->plugin->gettext('none'))) . '</li>';

	// filters set list
	$list = $this->list_scripts();
	$select = new html_select(array('name' => '_copy', 'id' => '_copy'));

	if (is_array($list)) {
	asort($list, SORT_LOCALE_STRING);

	if (!$copy)
	$copy = $_SESSION['managesieve_current'];

	foreach ($list as $set) {
	$select->add($set, $set);
	}

	$filters .= '<li>' . html::label('from_set', html::tag('input', array(
	'type' => 'radio',
	'id' => 'from_set',
	'name' => '_from',
	'value' => 'set',
	'checked' => $selected == 'set',
	)) . rcube::Q($this->plugin->gettext('fromset')) . ' ' . $select->show($copy)) . '</li>';
	}

	// script upload box
	$upload = new html_inputfield(array('name' => '_file', 'id' => '_file', 'size' => 30,
	'type' => 'file', 'class' => ($this->errors['file'] ? 'error' : '')));

	$filters .= '<li>' . html::label('from_file', html::tag('input', array(
	'type' => 'radio',
	'id' => 'from_file',
	'name' => '_from',
	'value' => 'file',
	'checked' => $selected == 'file',
	)) . rcube::Q($this->plugin->gettext('fromfile')) . ' ' . $upload->show()) . '</li>';

	$filters .= '</ul>';

	$table->add('title', html::label('from_none', rcube::Q($this->plugin->gettext('filters'))));
	$table->add('', $filters);

	$out = '<form name="filtersetform" action="./" method="post" enctype="multipart/form-data">'
	. "\n" . $hiddenfields->show() . "\n" . $table->show();

	$this->rc->output->add_gui_object('sieveform', 'filtersetform');

	if ($this->errors['name'])
	$this->add_tip('_name', $this->errors['name'], true);
	if ($this->errors['file'])
	$this->add_tip('_file', $this->errors['file'], true);

	$this->print_tips();

	return $out;
	}


	function filter_form($attrib)
	{
	if (!$attrib['id']) {
	$attrib['id'] = 'rcmfilterform';
	}

	$fid = rcube_utils::get_input_value('_fid', rcube_utils::INPUT_GPC);
	$scr = isset($this->form) ? $this->form : $this->script[$fid];
	$compact = !empty($attrib['compact-form']);

	$_SESSION['managesieve-compact-form'] = $compact;

	// do not allow creation of new rules
	if ($fid == null && in_array('new_rule', $this->disabled_actions)) {
	$this->rc->output->show_message('managesieve.disabledaction', 'error');
	return;
	}

	$hiddenfields = new html_hiddenfield(array('name' => '_task', 'value' => $this->rc->task));
	$hiddenfields->add(array('name' => '_action', 'value' => 'plugin.managesieve-save'));
	$hiddenfields->add(array('name' => '_framed', 'value' => ($_POST['_framed'] \|\| $_GET['_framed'] ? 1 : 0)));
	$hiddenfields->add(array('name' => '_fid', 'value' => $fid));

	$out = $hiddenfields->show();

	// 'any' flag
	if ((!isset($this->form) && empty($scr['tests']) && !empty($scr))
	\|\| (is_array($scr['tests']) && count($scr['tests']) == 1 && $scr['tests'][0]['test'] == 'true' && !$scr['tests'][0]['not'])
	) {
	$any = true;
	}

	// filter name input
	$input_name = new html_inputfield(array(
	'name' => '_name',
	'id' => '_name',
	'size' => 30,
	'class' => ($this->errors['name'] ? ' error' : '')
	));

	if ($this->errors['name']) {
	$this->add_tip('_name', $this->errors['name'], true);
	}

	$input_name = $input_name->show(isset($scr) ? $scr['name'] : '');

	$out .= sprintf("\n" . '<div class="form-group row">'
	. '<label for="_name" class="col-sm-4 col-form-label">%s</label>'
	. '<div class="col-sm-8">%s</div></div>',
	rcube::Q($this->plugin->gettext('filtername')), $input_name);

	// filter set selector
	if ($this->rc->task == 'mail') {
	$out .= sprintf("\n" . '<div class="form-group row">'
	. '<label for="%s" class="col-sm-4 col-form-label">%s</label>'
	. '<div class="col-sm-8">%s</div></div>',
	'sievescriptname',
	rcube::Q($this->plugin->gettext('filterset')),
	$this->filtersets_list(array('id' => 'sievescriptname'), true)
	);
	}
	else if ($compact) {
	$out .= sprintf("\n" . '<div class="form-group row form-check">'
	. '<label for="disabled" class="col-sm-4 col-form-label">%s</label>'
	. '<div class="col-sm-8 form-check"><input type="checkbox" id="disabled" name="_disabled" value="1" /></div></div>',
	rcube::Q($this->plugin->gettext('filterdisabled')));
	}

	if ($compact) {
	$select = new html_select(array('name' => '_join', 'id' => '_join' . $id,
	'onchange' => 'rule_join_radio(this.value)'));

	foreach (array('allof', 'anyof', 'any') as $val) {
	$select->add($this->plugin->gettext('filter' . $val), $val);
	}

	$join = $any ? 'any' : 'allof';
	if (isset($scr) && !$any) {
	$join = $scr['join'] ? 'allof' : 'anyof';
	}

	$out .= sprintf("\n" . '<div class="form-group row">'
	. '<label for="_join" class="col-sm-4 col-form-label">%s</label>'
	. '<div class="col-sm-8">%s</div></div>',
	rcube::Q($this->plugin->gettext('scope')), $select->show($join));

	$out .= '<div id="rules"'.($any ? ' style="display: none"' : '').'>';
	$out .= "\n<fieldset><legend>" . rcube::Q($this->plugin->gettext('rules')) . "</legend>\n";
	}
	else {
	$out .= '<br><fieldset><legend>' . rcube::Q($this->plugin->gettext('messagesrules')) . "</legend>\n";

	// any, allof, anyof radio buttons
	$field_id = '_allof';
	$input_join = new html_radiobutton(array('name' => '_join', 'id' => $field_id, 'value' => 'allof',
	'onclick' => 'rule_join_radio(\'allof\')', 'class' => 'radio'));

	if (isset($scr) && !$any)
	$input_join = $input_join->show($scr['join'] ? 'allof' : '');
	else
	$input_join = $input_join->show();

	$out .= $input_join . html::label($field_id, rcube::Q($this->plugin->gettext('filterallof')));

	$field_id = '_anyof';
	$input_join = new html_radiobutton(array('name' => '_join', 'id' => $field_id, 'value' => 'anyof',
	'onclick' => 'rule_join_radio(\'anyof\')', 'class' => 'radio'));

	if (isset($scr) && !$any)
	$input_join = $input_join->show($scr['join'] ? '' : 'anyof');
	else
	$input_join = $input_join->show('anyof'); // default

	$out .= $input_join . html::label($field_id, rcube::Q($this->plugin->gettext('filteranyof')));

	$field_id = '_any';
	$input_join = new html_radiobutton(array('name' => '_join', 'id' => $field_id, 'value' => 'any',
	'onclick' => 'rule_join_radio(\'any\')', 'class' => 'radio'));

	$input_join = $input_join->show($any ? 'any' : '');

	$out .= $input_join . html::label($field_id, rcube::Q($this->plugin->gettext('filterany')));
	$out .= '<div id="rules"'.($any ? ' style="display: none"' : '').'>';
	}

	$rows_num = !empty($scr['tests']) ? count($scr['tests']) : 1;
	for ($x=0; $x<$rows_num; $x++) {
	$out .= $this->rule_div($fid, $x, true, $compact);
	}

	$out .= $compact ? "</fieldset>\n</div>\n" : "</div>\n</fieldset>\n";

	// actions
	$label = $this->plugin->gettext($compact ? 'actions' : 'messagesactions');
	$out .= '<fieldset><legend>' . rcube::Q($label) . "</legend>\n";

	$rows_num = isset($scr) ? count($scr['actions']) : 1;

	$out .= '<div id="actions">';
	for ($x=0; $x<$rows_num; $x++)
	$out .= $this->action_div($fid, $x);
	$out .= "</div>\n";

	$out .= "</fieldset>\n";

	$this->print_tips();

	if ($scr['disabled']) {
	$this->rc->output->set_env('rule_disabled', true);
	}
	$this->rc->output->add_label(
	'managesieve.ruledeleteconfirm',
	'managesieve.actiondeleteconfirm'
	);
	$this->rc->output->add_gui_object('sieveform', 'filterform');

	$attrib['name'] = 'filterform';
	$attrib['action'] = './';
	$attrib['method'] = 'post';

	$out = html::tag('form', $attrib, $out, array('name', 'action', 'method', 'class'));

	if (!$compact) {
	$out = str_replace('</form>', '', $out);
	}

	return $out;
	}

	function rule_div($fid, $id, $div = true, $compact = false)
	{
	$rule = isset($this->form) ? $this->form['tests'][$id] : $this->script[$fid]['tests'][$id];

	if (isset($this->form['tests'])) {
	$rows_num = count($this->form['tests']);
	}
	else if (isset($this->script[$fid]['tests'])) {
	$rows_num = count($this->script[$fid]['tests']);
	}
	else {
	$rows_num = 0;
	}

	// headers select
	$select_header = new html_select(array('name' => "_header[$id]", 'id' => 'header'.$id,
	'onchange' => 'rule_header_select(' .$id .')'));

	foreach ($this->headers as $index => $header) {
	$header = $this->rc->text_exists($index) ? $this->plugin->gettext($index) : $header;
	$select_header->add($header, $index);
	}
	$select_header->add($this->plugin->gettext('...'), '...');
	if (in_array('body', $this->exts)) {
	$select_header->add($this->plugin->gettext('body'), 'body');
	}
	$select_header->add($this->plugin->gettext('size'), 'size');
	if (in_array('date', $this->exts)) {
	$select_header->add($this->plugin->gettext('datetest'), 'date');
	$select_header->add($this->plugin->gettext('currdate'), 'currentdate');
	}
	if (in_array('variables', $this->exts)) {
	$select_header->add($this->plugin->gettext('string'), 'string');
	}
	if (in_array('duplicate', $this->exts)) {
	$select_header->add($this->plugin->gettext('message'), 'message');
	}

	if (isset($rule['test'])) {
	if (in_array($rule['test'], array('header', 'address', 'envelope'))) {
	if (is_array($rule['arg1']) && count($rule['arg1']) == 1) {
	$rule['arg1'] = $rule['arg1'][0];
	}

	$matches = !is_array($rule['arg1']) && ($header = strtolower($rule['arg1'])) && isset($this->headers[$header]);
	$test = $matches ? $header : '...';
	}
	else if ($rule['test'] == 'exists') {
	if (is_array($rule['arg']) && count($rule['arg']) == 1) {
	$rule['arg'] = $rule['arg'][0];
	}

	$matches = !is_array($rule['arg']) && ($header = strtolower($rule['arg'])) && isset($this->headers[$header]);
	$test = $matches ? $header : '...';
	}
	else if (in_array($rule['test'], array('size', 'body', 'date', 'currentdate', 'string'))) {
	$test = $rule['test'];
	}
	else if (in_array($rule['test'], array('duplicate'))) {
	$test = 'message';
	}
	else if ($rule['test'] != 'true') {
	$test = '...';
	}
	}

	$tout = '<div class="flexbox">';
	$aout = $select_header->show($test);

	// custom headers input
	if (isset($rule['test']) && in_array($rule['test'], array('header', 'address', 'envelope'))) {
	$custom = (array) $rule['arg1'];
	if (count($custom) == 1 && isset($this->headers[strtolower($custom[0])])) {
	unset($custom);
	}
	}
	else if (isset($rule['test']) && $rule['test'] == 'string') {
	$customv = (array) $rule['arg1'];
	if (count($customv) == 1 && isset($this->headers[strtolower($customv[0])])) {
	unset($customv);
	}
	}
	else if (isset($rule['test']) && $rule['test'] == 'exists') {
	$custom = (array) $rule['arg'];
	if (count($custom) == 1 && isset($this->headers[strtolower($custom[0])])) {
	unset($custom);
	}
	}

	// custom header and variable inputs
	$aout .= $this->list_input($id, 'custom_header', $custom, isset($custom),
	$this->error_class($id, 'test', 'header', 'custom_header'), 15) . "\n";

	$aout .= $this->list_input($id, 'custom_var', $customv, isset($customv),
	$this->error_class($id, 'test', 'header', 'custom_var'), 15) . "\n";

	$test = self::rule_test($rule);
	$target = '';

	// target(s) input
	if (in_array($rule['test'], array('header', 'address', 'envelope','string'))) {
	$target = $rule['arg2'];
	}
	else if (in_array($rule['test'], array('body', 'date', 'currentdate'))) {
	$target = $rule['arg'];
	}
	else if ($rule['test'] == 'size') {
	if (preg_match('/^([0-9]+)(K\|M\|G)?$/', $rule['arg'], $matches)) {
	$sizetarget = $matches[1];
	$sizeitem = $matches[2];
	}
	else {
	$sizetarget = $rule['arg'];
	$sizeitem = $rule['item'];
	}
	}

	// (current)date part select
	if (in_array('date', $this->exts) \|\| in_array('currentdate', $this->exts)) {
	$date_parts = array('date', 'iso8601', 'std11', 'julian', 'time',
	'year', 'month', 'day', 'hour', 'minute', 'second', 'weekday', 'zone');
	$select_dp = new html_select(array('name' => "_rule_date_part[$id]", 'id' => 'rule_date_part'.$id,
	'style' => in_array($rule['test'], array('currentdate', 'date')) && !preg_match('/^(notcount\|count)-/', $test) ? '' : 'display:none',
	'class' => 'datepart_selector',
	));

	foreach ($date_parts as $part) {
	$select_dp->add(rcube::Q($this->plugin->gettext($part)), $part);
	}

	$aout .= $select_dp->show($rule['test'] == 'currentdate' \|\| $rule['test'] == 'date' ? $rule['part'] : '');
	}

	// message test select (e.g. duplicate)
	if (in_array('duplicate', $this->exts)) {
	$select_msg = new html_select(array('name' => "_rule_message[$id]", 'id' => 'rule_message'.$id,
	'style' => in_array($rule['test'], array('duplicate')) ? '' : 'display:none',
	'class' => 'message_selector',
	));

	$select_msg->add(rcube::Q($this->plugin->gettext('duplicate')), 'duplicate');
	$select_msg->add(rcube::Q($this->plugin->gettext('notduplicate')), 'notduplicate');

	$tout .= $select_msg->show($test);
	}

	$tout .= $this->match_type_selector('rule_op', $id, $test, $rule['test']);
	$tout .= $this->list_input($id, 'rule_target', $target,
	$rule['test'] != 'size' && $rule['test'] != 'exists' && $rule['test'] != 'duplicate',
	$this->error_class($id, 'test', 'target', 'rule_target')) . "\n";

	$select_size_op = new html_select(array('name' => "_rule_size_op[$id]", 'id' => 'rule_size_op'.$id, 'class' => 'input-group-prepend'));
	$select_size_op->add(rcube::Q($this->plugin->gettext('filterover')), 'over');
	$select_size_op->add(rcube::Q($this->plugin->gettext('filterunder')), 'under');

	$select_size_item = new html_select(array('name' => "_rule_size_item[$id]", 'id' => 'rule_size_item'.$id, 'class' => 'input-group-append'));
	foreach (array('', 'K', 'M', 'G') as $unit) {
	$select_size_item->add($this->plugin->gettext($unit . 'B'), $unit);
	}

	$tout .= '<div id="rule_size' .$id. '" class="input-group" style="display:' . ($rule['test']=='size' ? 'inline' : 'none') .'">';
	$tout .= $select_size_op->show($rule['test']=='size' ? $rule['type'] : '');
	$tout .= html::tag('input', array(
	'type' => 'text',
	'name' => "_rule_size_target[$id]",
	'id' => 'rule_size_i'.$id,
	'value' => $sizetarget,
	'size' => 10,
	'class' => $this->error_class($id, 'test', 'sizetarget', 'rule_size_i'),
	));
	$tout .= "\n" . $select_size_item->show($sizeitem);
	$tout .= '</div>';
	$tout .= '</div>';

	// Advanced modifiers (address, envelope)
	$select_mod = new html_select(array('name' => "_rule_mod[$id]", 'id' => 'rule_mod_op'.$id,
	'onchange' => 'rule_mod_select(' .$id .')'));
	$select_mod->add(rcube::Q($this->plugin->gettext('none')), '');
	$select_mod->add(rcube::Q($this->plugin->gettext('address')), 'address');
	if (in_array('envelope', $this->exts)) {
	$select_mod->add(rcube::Q($this->plugin->gettext('envelope')), 'envelope');
	}

	$select_type = new html_select(array('name' => "_rule_mod_type[$id]", 'id' => 'rule_mod_type'.$id));
	$select_type->add(rcube::Q($this->plugin->gettext('allparts')), 'all');
	$select_type->add(rcube::Q($this->plugin->gettext('domain')), 'domain');
	$select_type->add(rcube::Q($this->plugin->gettext('localpart')), 'localpart');
	if (in_array('subaddress', $this->exts)) {
	$select_type->add(rcube::Q($this->plugin->gettext('user')), 'user');
	$select_type->add(rcube::Q($this->plugin->gettext('detail')), 'detail');
	}

	$need_mod = !in_array($rule['test'], array('size', 'body', 'date', 'currentdate', 'duplicate', 'string'));
	$mout = '<div id="rule_mod' .$id. '" class="adv input-group"' . (!$need_mod ? ' style="display:none"' : '') . '>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('modifier'))));
	$mout .= $select_mod->show($rule['test']);
	$mout .= '</div>';
	$mout .= '<div id="rule_mod_type' . $id . '" class="adv input-group"';
	$mout .= (!in_array($rule['test'], array('address', 'envelope')) ? ' style="display:none"' : '') . '>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('modtype'))));
	$mout .= $select_type->show($rule['part']);
	$mout .= '</div>';

	// Advanced modifiers (comparators)
	$need_comp = $rule['test'] != 'size' && $rule['test'] != 'duplicate';
	$mout .= '<div id="rule_comp' .$id. '" class="adv input-group"' . (!$need_comp ? ' style="display:none"' : '') . '>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('comparator'))));
	$mout .= $this->comparator_selector($rule['comparator'], 'rule_comp', $id);
	$mout .= '</div>';

	// Advanced modifiers (mime)
	if (in_array('mime', $this->exts)) {
	$need_mime = !$rule \|\| in_array($rule['test'], array('header', 'address', 'exists'));
	$mime_type = '';
	$select_mime = new html_select(array('name' => "_rule_mime_type[$id]", 'id' => 'rule_mime_type' . $id,
	'style' => 'min-width:8em', 'onchange' => 'rule_mime_select(' . $id . ')'));
	$select_mime->add('-', '');

	foreach (array('contenttype', 'type', 'subtype', 'param') as $val) {
	if (isset($rule['mime-' . $val])) {
	$mime_type = $val;
	}

	$select_mime->add(rcube::Q($this->plugin->gettext('mime-' . $val)), $val);
	}

	$select_mime_part = new html_select(array('name' => "_rule_mime_part[$id]", 'id' => 'rule_mime_part' . $id));
	$select_mime_part->add(rcube::Q($this->plugin->gettext('mime-message')), '');
	$select_mime_part->add(rcube::Q($this->plugin->gettext('mime-anychild')), 'anychild');

	$mout .= '<div id="rule_mime_part' .$id. '" class="adv input-group"' . (!$need_mime ? ' style="display:none"' : '') . '>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('mimepart'))));
	$mout .= $select_mime_part->show(!empty($rule['mime-anychild']) ? 'anychild' : '');
	$mout .= '</div>';
	$mout .= '<div id="rule_mime' .$id. '" class="adv input-group"' . (!$need_mime ? ' style="display:none"' : '') . '>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('mime'))));
	$mout .= $select_mime->show($mime_type);
	$mout .= $this->list_input($id, 'rule_mime_param', $rule['mime-param'], true,
	$this->error_class($id, 'test', 'mime_param', 'rule_mime_param'), 30, $mime_type != 'param');
	$mout .= '</div>';
	}

	// Advanced modifiers (body transformations)
	$select_mod = new html_select(array('name' => "_rule_trans[$id]", 'id' => 'rule_trans_op'.$id,
	'onchange' => 'rule_trans_select(' .$id .')'));
	$select_mod->add(rcube::Q($this->plugin->gettext('text')), 'text');
	$select_mod->add(rcube::Q($this->plugin->gettext('undecoded')), 'raw');
	$select_mod->add(rcube::Q($this->plugin->gettext('contenttype')), 'content');

	$mout .= '<div id="rule_trans' .$id. '" class="adv input-group"' . ($rule['test'] != 'body' ? ' style="display:none"' : '') . '>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('modifier'))));
	$mout .= $select_mod->show($rule['part']);
	$mout .= html::tag('input', array(
	'type' => 'text',
	'name' => "_rule_trans_type[$id]",
	'id' => 'rule_trans_type'.$id,
	'value' => is_array($rule['content']) ? implode(',', $rule['content']) : $rule['content'],
	'size' => 20,
	'style' => $rule['part'] != 'content' ? 'display:none' : '',
	'class' => $this->error_class($id, 'test', 'part', 'rule_trans_type'),
	));
	$mout .= '</div>';

	// Date header
	if (in_array('date', $this->exts)) {
	$mout .= '<div id="rule_date_header_div' .$id. '" class="adv input-group"'. ($rule['test'] != 'date' ? ' style="display:none"' : '') .'>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('dateheader'))));
	$mout .= html::tag('input', array(
	'type' => 'text',
	'name' => "_rule_date_header[$id]",
	'id' => 'rule_date_header' . $id,
	'value' => $rule['test'] == 'date' ? $rule['header'] : '',
	'size' => 15,
	'class' => $this->error_class($id, 'test', 'dateheader', 'rule_date_header'),
	));
	$mout .= '</div>';
	}

	// Index
	if (in_array('index', $this->exts)) {
	$need_index = in_array($rule['test'], array('header', ', address', 'date'));
	$mout .= '<div id="rule_index_div' .$id. '" class="adv input-group"'. (!$need_index ? ' style="display:none"' : '') .'>';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('index'))));
	$mout .= html::tag('input', array(
	'type' => 'text',
	'name' => "_rule_index[$id]",
	'id' => 'rule_index' . $id,
	'value' => $rule['index'] ? intval($rule['index']) : '',
	'size' => 3,
	'class' => $this->error_class($id, 'test', 'index', 'rule_index'),
	));
	$mout .= html::label('input-group-append',
	html::tag('input', array(
	'type' => 'checkbox',
	'name' => "_rule_index_last[$id]",
	'id' => 'rule_index_last' . $id,
	'value' => 1,
	'checked' => !empty($rule['last']),
	)) . rcube::Q($this->plugin->gettext('indexlast')));
	$mout .= '</div>';
	}

	// Duplicate
	if (in_array('duplicate', $this->exts)) {
	$need_duplicate = $rule['test'] == 'duplicate';
	$mout .= '<div id="rule_duplicate_div' .$id. '" class="adv"'. (!$need_duplicate ? ' style="display:none"' : '') .'>';

	foreach (array('handle', 'header', 'uniqueid') as $unit) {
	$mout .= '<div class="input-group">';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('duplicate.' . $unit))));
	$mout .= html::tag('input', array(
	'type' => 'text',
	'name' => '_rule_duplicate_' . $unit . "[$id]",
	'id' => 'rule_duplicate_' . $unit . $id,
	'value' => $rule[$unit],
	'size' => 30,
	'class' => $this->error_class($id, 'test', 'duplicate_' . $unit, 'rule_duplicate_' . $unit),
	));
	$mout .= '</div>';
	}

	$mout .= '<div class="input-group">';
	$mout .= html::span('label input-group-prepend', html::span('input-group-text', rcube::Q($this->plugin->gettext('duplicate.seconds'))));
	$mout .= html::tag('input', array(
	'type' => 'text',
	'name' => "_rule_duplicate_seconds[$id]",
	'id' => 'rule_duplicate_seconds' . $id,
	'value' => $rule['seconds'],
	'size' => 6,
	'class' => $this->error_class($id, 'test', 'duplicate_seconds', 'rule_duplicate_seconds'),
	));
	$mout .= html::label('input-group-append',
	html::tag('input', array(
	'type' => 'checkbox',
	'name' => '_rule_duplicate_last[' . $id . ']',
	'id' => 'rule_duplicate_last' . $id,
	'value' => 1,
	'checked' => !empty($rule['last']),
	)) . rcube::Q($this->plugin->gettext('duplicate.last')));
	$mout .= '</div>';
	$mout .= '</div>';
	}

	$add_title = rcube::Q($this->plugin->gettext('add'));
	$del_title = rcube::Q($this->plugin->gettext('del'));
	$adv_title = rcube::Q($this->plugin->gettext('advancedopts'));

	// Build output table
	$out = $div ? '<div class="rulerow" id="rulerow' .$id .'">'."\n" : '';
	$out .= '<table class="compact-table"><tr>';

	if (!$compact) {
	$out .= '<td class="advbutton">';
	$out .= sprintf('<a href="#" id="ruleadv%s" title="%s" onclick="rule_adv_switch(%s, this); return false" class="show">'
	. '<span class="inner">%s</span></a>', $id, $adv_title, $id, $adv_title);
	$out .= '</td>';
	}

	$out .= '<td class="rowactions"><div class="flexbox">' . $aout . '</div></td>';
	$out .= '<td class="rowtargets">' . $tout . "\n";
	$out .= '<div id="rule_advanced' .$id. '" style="display:none" class="advanced">' . $mout . '</div>';
	$out .= '</td>';
	$out .= '<td class="rowbuttons">';
	if ($compact) {
	$out .= sprintf('<a href="#" id="ruleadv%s" title="%s" onclick="rule_adv_switch(%s, this); return false" class="advanced show">'
	. '<span class="inner">%s</span></a>', $id, $adv_title, $id, $adv_title);
	}
	$out .= sprintf('<a href="#" id="ruleadd%s" title="%s" onclick="rcmail.managesieve_ruleadd(\'%s\'); return false" class="button create add">'
	. '<span class="inner">%s</span></a>', $id, $add_title, $id, $add_title);
	$out .= sprintf('<a href="#" id="ruledel%s" title="%s" onclick="rcmail.managesieve_ruledel(\'%s\'); return false" class="button delete del%s">'
	. '<span class="inner">%s</span></a>', $id, $del_title, $id, ($rows_num < 2 ? ' disabled' : ''), $del_title);
	$out .= '</td>';

	$out .= '</tr></table>';
	$out .= $div ? "</div>\n" : '';

	return $out;
	}

	private static function rule_test(&$rule)
	{
	// first modify value/count tests with 'not' keyword
	// we'll revert the meaning of operators
	if ($rule['not'] && preg_match('/^(count\|value)-([gteqnl]{2})/', $rule['type'], $m)) {
	$rule['not'] = false;

	switch ($m[2]) {
	case 'gt': $rule['type'] = $m[1] . '-le'; break;
	case 'ge': $rule['type'] = $m[1] . '-lt'; break;
	case 'lt': $rule['type'] = $m[1] . '-ge'; break;
	case 'le': $rule['type'] = $m[1] . '-gt'; break;
	case 'eq': $rule['type'] = $m[1] . '-ne'; break;
	case 'ne': $rule['type'] = $m[1] . '-eq'; break;
	}
	}
	else if ($rule['not'] && $rule['test'] == 'size') {
	$rule['not'] = false;
	$rule['type'] = $rule['type'] == 'over' ? 'under' : 'over';
	}

	$set = array('header', 'address', 'envelope', 'body', 'date', 'currentdate', 'string');

	// build test string supported by select element
	if ($rule['size']) {
	$test = $rule['type'];
	}
	else if (in_array($rule['test'], $set)) {
	$test = ($rule['not'] ? 'not' : '') . ($rule['type'] ?: 'is');
	}
	else {
	$test = ($rule['not'] ? 'not' : '') . $rule['test'];
	}

	return $test;
	}

	function action_div($fid, $id, $div=true)
	{
	$action = isset($this->form) ? $this->form['actions'][$id] : $this->script[$fid]['actions'][$id];

	if (isset($this->form['actions'])) {
	$rows_num = count($this->form['actions']);
	}
	else if (isset($this->script[$fid]['actions'])) {
	$rows_num = count($this->script[$fid]['actions']);
	}
	else {
	$rows_num = 0;
	}

	$out = $div ? '<div class="actionrow" id="actionrow' .$id .'">'."\n" : '';

	$out .= '<table class="compact-table"><tr><td class="rowactions">';

	// action select
	$select_action = new html_select(array('name' => "_action_type[$id]", 'id' => 'action_type'.$id,
	'onchange' => 'action_type_select(' .$id .')'));
	if (in_array('fileinto', $this->exts))
	$select_action->add($this->plugin->gettext('messagemoveto'), 'fileinto');
	if (in_array('fileinto', $this->exts) && in_array('copy', $this->exts))
	$select_action->add($this->plugin->gettext('messagecopyto'), 'fileinto_copy');
	$select_action->add($this->plugin->gettext('messageredirect'), 'redirect');
	if (in_array('copy', $this->exts))
	$select_action->add($this->plugin->gettext('messagesendcopy'), 'redirect_copy');
	if (in_array('reject', $this->exts))
	$select_action->add($this->plugin->gettext('messagediscard'), 'reject');
	else if (in_array('ereject', $this->exts))
	$select_action->add($this->plugin->gettext('messagediscard'), 'ereject');
	if (in_array('vacation', $this->exts))
	$select_action->add($this->plugin->gettext('messagereply'), 'vacation');
	$select_action->add($this->plugin->gettext('messagedelete'), 'discard');
	if (in_array('imapflags', $this->exts) \|\| in_array('imap4flags', $this->exts)) {
	$select_action->add($this->plugin->gettext('setflags'), 'setflag');
	$select_action->add($this->plugin->gettext('addflags'), 'addflag');
	$select_action->add($this->plugin->gettext('removeflags'), 'removeflag');
	}
	if (in_array('editheader', $this->exts)) {
	$select_action->add($this->plugin->gettext('addheader'), 'addheader');
	$select_action->add($this->plugin->gettext('deleteheader'), 'deleteheader');
	}
	if (in_array('variables', $this->exts)) {
	$select_action->add($this->plugin->gettext('setvariable'), 'set');
	}
	if (in_array('enotify', $this->exts) \|\| in_array('notify', $this->exts)) {
	$select_action->add($this->plugin->gettext('notify'), 'notify');
	}
	$select_action->add($this->plugin->gettext('messagekeep'), 'keep');
	$select_action->add($this->plugin->gettext('rulestop'), 'stop');

	$select_type = $action['type'];
	if (in_array($action['type'], array('fileinto', 'redirect')) && $action['copy']) {
	$select_type .= '_copy';
	}

	$out .= $select_action->show($select_type);
	$out .= '</td>';

	// actions target inputs
	$out .= '<td class="rowtargets">';

	// force domain selection in redirect email input
	$domains = (array) $this->rc->config->get('managesieve_domains');
	if (!empty($domains)) {
	sort($domains);

	$domain_select = new html_select(array('name' => "_action_target_domain[$id]", 'id' => 'action_target_domain'.$id));
	$domain_select->add(array_combine($domains, $domains));

	if ($action['type'] == 'redirect') {
	$parts = explode('@', $action['target']);
	if (!empty($parts)) {
	$action['domain'] = array_pop($parts);
	$action['target'] = implode('@', $parts);
	}
	}
	}

	// redirect target
	$out .= '<span id="redirect_target' . $id . '" style="white-space:nowrap;'
	. ' display:' . ($action['type'] == 'redirect' ? 'inline' : 'none') . '">'
	. html::tag('input', array(
	'type' => 'text',
	'name' => '_action_target[' . $id . ']',
	'id' => 'action_target' . $id,
	'value' => $action['type'] == 'redirect' ? $action['target'] : '',
	'size' => !empty($domains) ? 20 : 35,
	'class' => $this->error_class($id, 'action', 'target', 'action_target'),
	));
	$out .= !empty($domains) ? ' @ ' . $domain_select->show($action['domain']) : '';
	$out .= '</span>';

	// (e)reject target
	$out .= html::tag('textarea', array(
	'name' => '_action_target_area[' . $id . ']',
	'id' => 'action_target_area' . $id,
	'rows' => 3,
	'cols' => 35,
	'class' => $this->error_class($id, 'action', 'targetarea', 'action_target_area'),
	'style' => 'display:' . (in_array($action['type'], array('reject', 'ereject')) ? 'inline' : 'none'),
	), (in_array($action['type'], array('reject', 'ereject')) ? rcube::Q($action['target'], 'strict', false) : ''));

	// vacation
	$vsec = in_array('vacation-seconds', $this->exts);
	$auto_addr = $this->rc->config->get('managesieve_vacation_addresses_init');
	$from_addr = $this->rc->config->get('managesieve_vacation_from_init');

	if (empty($action)) {
	if ($auto_addr) {
	$action['addresses'] = $this->user_emails();
	}
	if ($from_addr) {
	$default_identity = $this->rc->user->list_emails(true);
	$action['from'] = $default_identity['email'];
	}
	}

	$out .= '<div id="action_vacation' .$id.'" style="display:' .($action['type']=='vacation' ? 'inline' : 'none') .'" class="composite">';
	$out .= '<span class="label">'. rcube::Q($this->plugin->gettext('vacationreason')) .'</span><br>';
	$out .= html::tag('textarea', array(
	'name' => '_action_reason[' . $id . ']',
	'id' => 'action_reason' . $id,
	'rows' => 3,
	'cols' => 35,
	'class' => $this->error_class($id, 'action', 'reason', 'action_reason'),
	), rcube::Q($action['reason'], 'strict', false));
	$out .= '<br><span class="label">' .rcube::Q($this->plugin->gettext('vacationsubject')) . '</span><br>';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_subject[' . $id . ']',
	'id' => 'action_subject' . $id,
	'value' => is_array($action['subject']) ? implode(', ', $action['subject']) : $action['subject'],
	'size' => 35,
	'class' => $this->error_class($id, 'action', 'subject', 'action_subject'),
	));
	$out .= '<br><span class="label">' .rcube::Q($this->plugin->gettext('vacationfrom')) . '</span><br>';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_from[' . $id . ']',
	'id' => 'action_from' . $id,
	'value' => $action['from'],
	'size' => 35,
	'class' => $this->error_class($id, 'action', 'from', 'action_from'),
	));
	$out .= '<br><span class="label">' .rcube::Q($this->plugin->gettext('vacationaddr')) . '</span><br>';
	$out .= $this->list_input($id, 'action_addresses', $action['addresses'], true,
	$this->error_class($id, 'action', 'addresses', 'action_addresses'), 30)
	. html::a(array('href' => '#', 'onclick' => rcmail_output::JS_OBJECT_NAME . ".managesieve_vacation_addresses($id)"),
	rcube::Q($this->plugin->gettext('filladdresses')));
	$out .= '<br><span class="label">' . rcube::Q($this->plugin->gettext('vacationinterval')) . '</span><br>';
	$out .= '<div class="input-group">' . html::tag('input', array(
	'type' => 'text',
	'name' => '_action_interval[' . $id . ']',
	'id' => 'action_interval' . $id,
	'value' => rcube_sieve_vacation::vacation_interval($action),
	'size' => 2,
	'class' => $this->error_class($id, 'action', 'interval', 'action_interval'),
	));
	if ($vsec) {
	$interval_select = new html_select(array('name' => '_action_interval_type[' . $id . ']', 'class' => 'input-group-append'));
	$interval_select->add($this->plugin->gettext('days'), 'days');
	$interval_select->add($this->plugin->gettext('seconds'), 'seconds');
	$out .= $interval_select->show(isset($action['seconds']) ? 'seconds' : 'days');
	}
	else {
	$out .= "\n" . html::span('input-group-append', html::span('input-group-text', $this->plugin->gettext('days')));
	}
	$out .= '</div></div>';

	// flags
	$flags = array(
	'read' => '\\Seen',
	'answered' => '\\Answered',
	'flagged' => '\\Flagged',
	'deleted' => '\\Deleted',
	'draft' => '\\Draft',
	);

	$flags_target = (array) $action['target'];
	$custom_flags = array();
	$is_flag_action = preg_match('/^(set\|add\|remove)flag$/', $action['type']);

	if ($is_flag_action) {
	$custom_flags = array_filter($flags_target, function($v) use($flags) {
	return !in_array_nocase($v, $flags);
	});
	}

	$flout = '';

	foreach ($flags as $fidx => $flag) {
	$flout .= html::label(null, html::tag('input', array(
	'type' => 'checkbox',
	'name' => "_action_flags[$id][]",
	'value' => $flag,
	'checked' => $is_flag_action && in_array_nocase($flag, $flags_target),
	))
	. rcube::Q($this->plugin->gettext('flag'.$fidx))) . '<br>';
	}

	$flout .= $this->list_input($id, 'action_flags', $custom_flags, true,
	$this->error_class($id, 'action', 'flags', 'action_flags'));

	$out .= html::div(array(
	'id' => 'action_flags' . $id,
	'style' => 'display:' . ($is_flag_action ? 'inline' : 'none'),
	'class' => trim('checklist ' . $this->error_class($id, 'action', 'flags', 'action_flags')),
	), $flout);

	// set variable
	$set_modifiers = array(
	'lower',
	'upper',
	'lowerfirst',
	'upperfirst',
	'quotewildcard',
	'length'
	);

	$out .= '<div id="action_set' .$id.'" style="display:' .($action['type']=='set' ? 'inline' : 'none') .'">';
	foreach (array('name', 'value') as $unit) {
	$out .= '<span class="label">' .rcube::Q($this->plugin->gettext('setvar' . $unit)) . '</span><br>';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_var' . $unit . '[' . $id . ']',
	'id' => 'action_var' . $unit . $id,
	'value' => $action[$unit],
	'size' => 35,
	'class' => $this->error_class($id, 'action', $unit, 'action_var' . $unit),
	));
	$out .= '<br>';
	}
	$out .= '<span class="label">' .rcube::Q($this->plugin->gettext('setvarmodifiers')) . '</span>';
	foreach ($set_modifiers as $s_m) {
	$s_m_id = 'action_varmods' . $id . $s_m;
	$out .= '<br>' . html::tag('input', array(
	'type' => 'checkbox',
	'name' => "_action_varmods[$id][]",
	'value' => $s_m,
	'id' => $s_m_id,
	'checked' => array_key_exists($s_m, (array)$action) && $action[$s_m],
	))
	.rcube::Q($this->plugin->gettext('var' . $s_m));
	}
	$out .= '</div>';

	// notify
	$notify_methods = (array) $this->rc->config->get('managesieve_notify_methods');
	$importance_options = $this->notify_importance_options;

	if (empty($notify_methods)) {
	$notify_methods = $this->notify_methods;
	}

	list($method, $target) = explode(':', $action['method'], 2);
	$method = strtolower($method);

	if ($method && !in_array($method, $notify_methods)) {
	$notify_methods[] = $method;
	}

	$select_method = new html_select(array(
	'name' => "_action_notifymethod[$id]",
	'id' => "_action_notifymethod$id",
	'class' => 'input-group-prepend ' . $this->error_class($id, 'action', 'method', 'action_notifymethod'),
	));
	foreach ($notify_methods as $m_n) {
	$select_method->add(rcube::Q($this->rc->text_exists('managesieve.notifymethod'.$m_n) ? $this->plugin->gettext('managesieve.notifymethod'.$m_n) : $m_n), $m_n);
	}

	$select_importance = new html_select(array(
	'name' => "_action_notifyimportance[$id]",
	'id' => "_action_notifyimportance$id",
	'class' => $this->error_class($id, 'action', 'importance', 'action_notifyimportance')
	));
	foreach ($importance_options as $io_v => $io_n) {
	$select_importance->add(rcube::Q($this->plugin->gettext($io_n)), $io_v);
	}

	// @TODO: nice UI for mailto: (other methods too) URI parameters
	$out .= '<div id="action_notify' .$id.'" style="display:' .($action['type'] == 'notify' ? 'inline' : 'none') .'" class="composite">';
	$out .= '<span class="label">' .rcube::Q($this->plugin->gettext('notifytarget')) . '</span><br>';
	$out .= '<div class="input-group">';
	$out .= $select_method->show($method);
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_notifytarget[' . $id . ']',
	'id' => 'action_notifytarget' . $id,
	'value' => $target,
	'size' => 25,
	'class' => $this->error_class($id, 'action', 'target', 'action_notifytarget'),
	));
	$out .= '</div>';
	$out .= '<br><span class="label">'. rcube::Q($this->plugin->gettext('notifymessage')) .'</span><br>';
	$out .= html::tag('textarea', array(
	'name' => '_action_notifymessage[' . $id . ']',
	'id' => 'action_notifymessage' . $id,
	'rows' => 3,
	'cols' => 35,
	'class' => $this->error_class($id, 'action', 'message', 'action_notifymessage'),
	), rcube::Q($action['message'], 'strict', false));
	if (in_array('enotify', $this->exts)) {
	$out .= '<br><span class="label">' .rcube::Q($this->plugin->gettext('notifyfrom')) . '</span><br>';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_notifyfrom[' . $id . ']',
	'id' => 'action_notifyfrom' . $id,
	'value' => $action['from'],
	'size' => 35,
	'class' => $this->error_class($id, 'action', 'from', 'action_notifyfrom'),
	));
	}
	$out .= '<br><span class="label">' . rcube::Q($this->plugin->gettext('notifyimportance')) . '</span><br>';
	$out .= $select_importance->show($action['importance'] ? (int) $action['importance'] : 2);
	$out .= '<div id="action_notifyoption_div' . $id . '">'
	.'<span class="label">' . rcube::Q($this->plugin->gettext('notifyoptions')) . '</span><br>'
	.$this->list_input($id, 'action_notifyoption', (array)$action['options'], true,
	$this->error_class($id, 'action', 'options', 'action_notifyoption'), 30) . '</div>';
	$out .= '</div>';

	if (in_array('editheader', $this->exts)) {
	$action['pos'] = $action['last'] ? 'last' : '';
	$pos1_selector = new html_select(array(
	'name' => "_action_addheader_pos[$id]",
	'id' => "action_addheader_pos$id",
	'class' => $this->error_class($id, 'action', 'pos', 'action_addheader_pos')
	));
	$pos1_selector->add($this->plugin->gettext('headeratstart'), '');
	$pos1_selector->add($this->plugin->gettext('headeratend'), 'last');
	$pos2_selector = new html_select(array(
	'name' => "_action_delheader_pos[$id]",
	'id' => "action_delheader_pos$id",
	'class' => $this->error_class($id, 'action', 'pos', 'action_delheader_pos')
	));
	$pos2_selector->add($this->plugin->gettext('headerfromstart'), '');
	$pos2_selector->add($this->plugin->gettext('headerfromend'), 'last');

	// addheader
	$out .= '<div id="action_addheader' .$id.'" style="display:' .($action['type'] == 'addheader' ? 'inline' : 'none') .'" class="composite">';
	$out .= '<label class="label" for="action_addheader_name' . $id .'">' .rcube::Q($this->plugin->gettext('headername')) . '</label><br>';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_addheader_name[' . $id . ']',
	'id' => 'action_addheader_name' . $id,
	'value' => $action['name'],
	'size' => 35,
	'class' => $this->error_class($id, 'action', 'name', 'action_addheader_name'),
	));
	$out .= '<br><label class="label" for="action_addheader_value' . $id .'">'. rcube::Q($this->plugin->gettext('headervalue')) .'</label><br>';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_addheader_value[' . $id . ']',
	'id' => 'action_addheader_value' . $id,
	'value' => $action['value'],
	'size' => 35,
	'class' => $this->error_class($id, 'action', 'value', 'action_addheader_value'),
	));
	$out .= '<br><label class="label" for="action_addheader_pos' . $id .'">'. rcube::Q($this->plugin->gettext('headerpos')) .'</label><br>';
	$out .= $pos1_selector->show($action['pos']);
	$out .= '</div>';

	// deleteheader
	$out .= '<div id="action_deleteheader' .$id.'" style="display:' .($action['type'] == 'deleteheader' ? 'inline' : 'none') .'" class="composite">';
	$out .= '<label class="label" for="action_delheader_name' . $id .'">' .rcube::Q($this->plugin->gettext('headername')) . '</label><br>';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_delheader_name[' . $id . ']',
	'id' => 'action_delheader_name' . $id,
	'value' => $action['name'],
	'size' => 35,
	'class' => $this->error_class($id, 'action', 'name', 'action_delheader_name'),
	));
	$out .= '<br><label class="label" for="action_delheader_value' . $id .'">'. rcube::Q($this->plugin->gettext('headerpatterns')) .'</label><br>';
	$out .= $this->list_input($id, 'action_delheader_value', $action['value'], true,
	$this->error_class($id, 'action', 'value', 'action_delheader_value')) . "\n";
	$out .= '<br><div class="adv input-group">';
	$out .= html::span('label input-group-prepend', html::label(array(
	'class' => 'input-group-text', 'for' => 'action_delheader_op'.$id), rcube::Q($this->plugin->gettext('headermatchtype'))));
	$out .= $this->match_type_selector('action_delheader_op', $id, $action['match-type'], null, 'basic');
	$out .= '</div>';
	$out .= '<div class="adv input-group">';
	$out .= html::span('label input-group-prepend', html::label(array(
	'class' => 'input-group-text', 'for' => 'action_delheader_comp_op'.$id), rcube::Q($this->plugin->gettext('comparator'))));
	$out .= $this->comparator_selector($action['comparator'], 'action_delheader_comp', $id);
	$out .= '</div>';
	$out .= '<br><label class="label" for="action_delheader_index' . $id .'">'. rcube::Q($this->plugin->gettext('headeroccurrence')) .'</label><br>';
	$out .= '<div class="input-group">';
	$out .= html::tag('input', array(
	'type' => 'text',
	'name' => '_action_delheader_index[' . $id . ']',
	'id' => 'action_delheader_index' . $id,
	'value' => $action['index'] ? intval($action['index']) : '',
	'size' => 5,
	'class' => $this->error_class($id, 'action', 'index', 'action_delheader_index'),
	));
	$out .= ' ' . $pos2_selector->show($action['pos']);
	$out .= '</div></div>';
	}

	// mailbox select
	if ($action['type'] == 'fileinto') {
	// make sure non-existing (or unsubscribed) mailbox is listed (#1489956)
	if ($mailbox = $this->mod_mailbox($action['target'], 'out')) {
	$additional = array($mailbox);
	}
	}
	else {
	$mailbox = '';
	}

	$select = $this->rc->folder_selector(array(
	'maxlength' => 100,
	'id' => 'action_mailbox' . $id,
	'name' => "_action_mailbox[$id]",
	'style' => 'display:'.(empty($action['type']) \|\| $action['type'] == 'fileinto' ? 'inline' : 'none'),
	'additional' => $additional,
	));
	$out .= $select->show($mailbox);
	$out .= '</td>';

	// add/del buttons
	$add_label = rcube::Q($this->plugin->gettext('add'));
	$del_label = rcube::Q($this->plugin->gettext('del'));
	$out .= '<td class="rowbuttons">';
	$out .= sprintf('<a href="#" id="actionadd%s" title="%s" onclick="rcmail.managesieve_actionadd(%s)" class="button create add">'
	. '<span class="inner">%s</span></a>', $id, $add_label, $id, $add_label);
	$out .= sprintf('<a href="#" id="actiondel%s" title="%s" onclick="rcmail.managesieve_actiondel(%s)" class="button delete del%s">'
	. '<span class="inner">%s</span></a>', $id, $del_label, $id, ($rows_num < 2 ? ' disabled' : ''), $del_label);
	$out .= '</td>';

	$out .= '</tr></table>';

	$out .= $div ? "</div>\n" : '';

	return $out;
	}

	protected function genid()
	{
	return preg_replace('/[^0-9]/', '', microtime(true));
	}

	protected function strip_value($str, $allow_html = false, $trim = true)
	{
	if (is_array($str)) {
	foreach ($str as $idx => $val) {
	$val = $this->strip_value($val, $allow_html, $trim);

	if ($val === '') {
	unset($str[$idx]);
	}
	}

	return $str;
	}

	if (!$allow_html) {
	$str = strip_tags($str);
	}

	return $trim ? trim($str) : $str;
	}

	protected function error_class($id, $type, $target, $elem_prefix='')
	{
	// TODO: tooltips
	if (($type == 'test' && ($str = $this->errors['tests'][$id][$target])) \|\|
	($type == 'action' && ($str = $this->errors['actions'][$id][$target]))
	) {
	$this->add_tip($elem_prefix.$id, $str, true);
	return 'error';
	}

	return '';
	}

	protected function add_tip($id, $str, $error=false)
	{
	if ($error) {
	$class = 'sieve error';
	}

	$this->tips[] = array($id, $class ?: '', $str);
	}

	protected function print_tips()
	{
	if (empty($this->tips)) {
	return;
	}

	$script = rcmail_output::JS_OBJECT_NAME.'.managesieve_tip_register('.json_encode($this->tips).');';
	$this->rc->output->add_script($script, 'docready');
	}

	protected function list_input($id, $name, $value, $enabled, $class, $size = null, $hidden = false)
	{
	$value = (array) $value;
	$value = array_map(array('rcube', 'Q'), $value);
	$value = implode("\n", $value);

	return html::tag('textarea', array(
	'data-type' => 'list',
	'data-size' => $size,
	'data-hidden' => $hidden ?: null,
	'name' => '_' . $name . '[' . $id . ']',
	'id' => $name.$id,
	'disabled' => !$enabled,
	'class' => $class,
	'style' => 'display:none',
	), $value);
	}

	/**
	* Validate input for date part elements
	*/
	protected function validate_date_part($type, $value)
	{
	// we do simple validation of date/part format
	switch ($type) {
	case 'date': // yyyy-mm-dd
	return preg_match('/^[0-9]{4}-[0-9]{2}-[0-9]{2}$/', $value);
	case 'iso8601':
	return preg_match('/^[0-9: .,ZWT+-]+$/', $value);
	case 'std11':
	return preg_match('/^((Sun\|Mon\|Tue\|Wed\|Thu\|Fri\|Sat),\s+)?[0-9]{1,2}\s+'
	. '(Jan\|Feb\|Mar\|Apr\|May\|Jun\|Jul\|Aug\|Sep\|Oct\|Nov\|Dec)\s+[0-9]{2,4}\s+'
	. '[0-9]{2}:[0-9]{2}(:[0-9]{2})?\s+([+-]*[0-9]{4}\|[A-Z]{1,3})$', $value);
	case 'julian':
	return preg_match('/^[0-9]+$/', $value);
	case 'time': // hh:mm:ss
	return preg_match('/^[0-9]{2}:[0-9]{2}:[0-9]{2}$/', $value);
	case 'year':
	return preg_match('/^[0-9]{4}$/', $value);
	case 'month':
	return preg_match('/^[0-9]{2}$/', $value) && $value > 0 && $value < 13;
	case 'day':
	return preg_match('/^[0-9]{2}$/', $value) && $value > 0 && $value < 32;
	case 'hour':
	return preg_match('/^[0-9]{2}$/', $value) && $value < 24;
	case 'minute':
	return preg_match('/^[0-9]{2}$/', $value) && $value < 60;
	case 'second':
	// According to RFC5260, seconds can be from 00 to 60
	return preg_match('/^[0-9]{2}$/', $value) && $value < 61;
	case 'weekday':
	return preg_match('/^[0-9]$/', $value) && $value < 7;
	case 'zone':
	return preg_match('/^[+-][0-9]{4}$/', $value);
	}
	}

	/**
	* Converts mailbox name from/to UTF7-IMAP from/to internal Sieve encoding
	* with delimiter replacement.
	*
	* @param string $mailbox Mailbox name
	* @param string $mode Conversion direction ('in'\|'out')
	*
	* @return string Mailbox name
	*/
	protected function mod_mailbox($mailbox, $mode = 'out')
	{
	$delimiter = $_SESSION['imap_delimiter'];
	$replace_delimiter = $this->rc->config->get('managesieve_replace_delimiter');
	$mbox_encoding = $this->rc->config->get('managesieve_mbox_encoding', 'UTF7-IMAP');

	if ($mode == 'out') {
	$mailbox = rcube_charset::convert($mailbox, $mbox_encoding, 'UTF7-IMAP');
	if ($replace_delimiter && $replace_delimiter != $delimiter)
	$mailbox = str_replace($replace_delimiter, $delimiter, $mailbox);
	}
	else {
	$mailbox = rcube_charset::convert($mailbox, 'UTF7-IMAP', $mbox_encoding);
	if ($replace_delimiter && $replace_delimiter != $delimiter)
	$mailbox = str_replace($delimiter, $replace_delimiter, $mailbox);
	}

	return $mailbox;
	}

	/**
	* List sieve scripts
	*
	* @return array Scripts list
	*/
	public function list_scripts()
	{
	if ($this->list !== null) {
	return $this->list;
	}

	$this->list = $this->sieve->get_scripts();

	// Handle active script(s) and list of scripts according to Kolab's KEP:14
	if ($this->rc->config->get('managesieve_kolab_master')) {
	// Skip protected names
	foreach ((array)$this->list as $idx => $name) {
	$_name = strtoupper($name);
	if ($_name == 'MASTER')
	$master_script = $name;
	else if ($_name == 'MANAGEMENT')
	$management_script = $name;
	else if($_name == 'USER')
	$user_script = $name;
	else
	continue;

	unset($this->list[$idx]);
	}

	// get active script(s), read USER script
	if ($user_script) {
	$extension = $this->rc->config->get('managesieve_filename_extension', '.sieve');
	$filename_regex = '/'.preg_quote($extension, '/').'$/';
	$_SESSION['managesieve_user_script'] = $user_script;

	$this->sieve->load($user_script);

	foreach ($this->sieve->script->as_array() as $rules) {
	foreach ($rules['actions'] as $action) {
	if ($action['type'] == 'include' && empty($action['global'])) {
	$name = preg_replace($filename_regex, '', $action['target']);
	// make sure the script exist
	if (in_array($name, $this->list)) {
	$this->active[] = $name;
	}
	}
	}
	}
	}
	// create USER script if it doesn't exist
	else {
	$content = "# USER Management Script\n"
	."#\n"
	."# This script includes the various active sieve scripts\n"
	."# it is AUTOMATICALLY GENERATED. DO NOT EDIT MANUALLY!\n"
	."#\n"
	."# For more information, see http://wiki.kolab.org/KEP:14#USER\n"
	."#\n";
	if ($this->sieve->save_script('USER', $content)) {
	$_SESSION['managesieve_user_script'] = 'USER';
	if (empty($this->master_file))
	$this->sieve->activate('USER');
	}
	}
	}
	else if (!empty($this->list)) {
	// Get active script name
	if ($active = $this->sieve->get_active()) {
	$this->active = array($active);
	}

	// Hide scripts from config
	$exceptions = $this->rc->config->get('managesieve_filename_exceptions');
	if (!empty($exceptions)) {
	$this->list = array_diff($this->list, (array)$exceptions);
	}
	}

	// When no script listing allowed limit the list to the defined script
	if (in_array('list_sets', $this->disabled_actions)) {
	$script_name = $this->rc->config->get('managesieve_script_name', 'roundcube');
	$this->list = array_intersect($this->list, array($script_name));
	$this->active = null;
	if (in_array($script_name, $this->list)) {
	// Because its the only allowed script make sure its active
	$this->activate_script($script_name);
	}
	}

	// reindex
	if (!empty($this->list)) {
	$this->list = array_values($this->list);
	}

	return $this->list;
	}

	/**
	* Removes sieve script
	*
	* @param string $name Script name
	*
	* @return bool True on success, False on failure
	*/
	public function remove_script($name)
	{
	$result = $this->sieve->remove($name);

	// Kolab's KEP:14
	if ($result && $this->rc->config->get('managesieve_kolab_master')) {
	$this->deactivate_script($name);
	}

	return $result;
	}

	/**
	* Activates sieve script
	*
	* @param string $name Script name
	*
	* @return bool True on success, False on failure
	*/
	public function activate_script($name)
	{
	// Kolab's KEP:14
	if ($this->rc->config->get('managesieve_kolab_master')) {
	$extension = $this->rc->config->get('managesieve_filename_extension', '.sieve');
	$user_script = $_SESSION['managesieve_user_script'];

	// if the script is not active...
	if ($user_script && array_search($name, (array) $this->active) === false) {
	// ...rewrite USER file adding appropriate include command
	if ($this->sieve->load($user_script)) {
	$script = $this->sieve->script->as_array();
	$list = array();
	$regexp = '/' . preg_quote($extension, '/') . '$/';

	// Create new include entry
	$rule = array(
	'actions' => array(
	0 => array(
	'target' => $name.$extension,
	'type' => 'include',
	'personal' => true,
	)));

	// get all active scripts for sorting
	foreach ($script as $rid => $rules) {
	foreach ($rules['actions'] as $action) {
	if ($action['type'] == 'include' && empty($action['global'])) {
	$target = $extension ? preg_replace($regexp, '', $action['target']) : $action['target'];
	$list[] = $target;
	}
	}
	}
	$list[] = $name;

	// Sort and find current script position
	asort($list, SORT_LOCALE_STRING);
	$list = array_values($list);
	$index = array_search($name, $list);

	// add rule at the end of the script
	if ($index === false \|\| $index == count($list)-1) {
	$this->sieve->script->add_rule($rule);
	}
	// add rule at index position
	else {
	$script2 = array();
	foreach ($script as $rid => $rules) {
	if ($rid == $index) {
	$script2[] = $rule;
	}
	$script2[] = $rules;
	}
	$this->sieve->script->content = $script2;
	}

	$result = $this->sieve->save();
	if ($result) {
	$this->active[] = $name;
	}
	}
	}
	}
	else {
	$result = $this->sieve->activate($name);
	if ($result)
	$this->active = array($name);
	}

	return $result;
	}

	/**
	* Deactivates sieve script
	*
	* @param string $name Script name
	*
	* @return bool True on success, False on failure
	*/
	public function deactivate_script($name)
	{
	// Kolab's KEP:14
	if ($this->rc->config->get('managesieve_kolab_master')) {
	$extension = $this->rc->config->get('managesieve_filename_extension', '.sieve');
	$user_script = $_SESSION['managesieve_user_script'];

	// if the script is active...
	if ($user_script && ($key = array_search($name, $this->active)) !== false) {
	// ...rewrite USER file removing appropriate include command
	if ($this->sieve->load($user_script)) {
	$script = $this->sieve->script->as_array();
	$name = $name.$extension;

	foreach ($script as $rid => $rules) {
	foreach ($rules['actions'] as $action) {
	if ($action['type'] == 'include' && empty($action['global'])
	&& $action['target'] == $name
	) {
	break 2;
	}
	}
	}

	// Entry found
	if ($rid < count($script)) {
	$this->sieve->script->delete_rule($rid);
	$result = $this->sieve->save();
	if ($result) {
	unset($this->active[$key]);
	}
	}
	}
	}
	}
	else {
	$result = $this->sieve->deactivate();
	if ($result)
	$this->active = array();
	}

	return $result;
	}

	/**
	* Saves current script (adding some variables)
	*/
	public function save_script($name = null)
	{
	// Kolab's KEP:14
	if ($this->rc->config->get('managesieve_kolab_master')) {
	$this->sieve->script->set_var('EDITOR', self::PROGNAME);
	$this->sieve->script->set_var('EDITOR_VERSION', self::VERSION);
	}

	return $this->sieve->save($name);
	}

	/**
	* Returns list of rules from the current script
	*
	* @return array List of rules
	*/
	public function list_rules()
	{
	$result = array();
	$i = 1;

	foreach ($this->script as $idx => $filter) {
	if (empty($filter['actions'])) {
	continue;
	}
	$fname = $filter['name'] ?: "#$i";
	$result[] = array(
	'id' => $idx,
	'name' => $fname,
	'class' => $filter['disabled'] ? 'disabled' : '',
	);
	$i++;
	}

	return $result;
	}

	/**
	* Initializes internal script data
	*/
	protected function init_script()
	{
	if (!$this->sieve->script) {
	return;
	}

	$this->script = $this->sieve->script->as_array();

	$headers = array();
	$exceptions = array('date', 'currentdate', 'size', 'body');

	// find common headers used in script, will be added to the list
	// of available (predefined) headers (#1489271)
	foreach ($this->script as $rule) {
	foreach ((array) $rule['tests'] as $test) {
	if ($test['test'] == 'header') {
	foreach ((array) $test['arg1'] as $header) {
	$lc_header = strtolower($header);

	// skip special names to not confuse UI
	if (in_array($lc_header, $exceptions)) {
	continue;
	}

	if (!isset($this->headers[$lc_header]) && !isset($headers[$lc_header])) {
	$headers[$lc_header] = $header;
	}
	}
	}
	}
	}

	ksort($headers);

	$this->headers += $headers;
	}

	/**
	* Get all e-mail addresses of the user
	*/
	protected function user_emails()
	{
	$addresses = $this->rc->user->list_emails();

	foreach ($addresses as $idx => $email) {
	$addresses[$idx] = $email['email'];
	}

	$addresses = array_unique($addresses);
	sort($addresses);

	return $addresses;
	}

	/**
	* Convert configured default headers into internal format
	*/
	protected function get_default_headers()
	{
	$default = array('Subject', 'From', 'To');
	$headers = (array) $this->rc->config->get('managesieve_default_headers', $default);
	$keys = array_map('strtolower', $headers);
	$headers = array_combine($keys, $headers);

	// make sure there's no Date header
	unset($headers['date']);

	return $headers;
	}

	/**
	* Match type selector
	*/
	protected function match_type_selector($name, $id, $test, $rule = null, $mode = 'all')
	{
	// matching type select (operator)
	$select_op = new html_select(array(
	'name' => "_{$name}[$id]",
	'id' => "{$name}{$id}",
	'style' => 'display:' .(!in_array($rule, array('size', 'duplicate')) ? 'inline' : 'none'),
	'class' => 'operator_selector',
	'onchange' => "{$name}_select(this, '{$id}')",
	));

	$select_op->add(rcube::Q($this->plugin->gettext('filtercontains')), 'contains');
	$select_op->add(rcube::Q($this->plugin->gettext('filternotcontains')), 'notcontains');
	$select_op->add(rcube::Q($this->plugin->gettext('filteris')), 'is');
	$select_op->add(rcube::Q($this->plugin->gettext('filterisnot')), 'notis');
	if ($mode == 'all') {
	$select_op->add(rcube::Q($this->plugin->gettext('filterexists')), 'exists');
	$select_op->add(rcube::Q($this->plugin->gettext('filternotexists')), 'notexists');
	}
	$select_op->add(rcube::Q($this->plugin->gettext('filtermatches')), 'matches');
	$select_op->add(rcube::Q($this->plugin->gettext('filternotmatches')), 'notmatches');
	if (in_array('regex', $this->exts)) {
	$select_op->add(rcube::Q($this->plugin->gettext('filterregex')), 'regex');
	$select_op->add(rcube::Q($this->plugin->gettext('filternotregex')), 'notregex');
	}
	if ($mode == 'all' && in_array('relational', $this->exts)) {
	$select_op->add(rcube::Q($this->plugin->gettext('countisgreaterthan')), 'count-gt');
	$select_op->add(rcube::Q($this->plugin->gettext('countisgreaterthanequal')), 'count-ge');
	$select_op->add(rcube::Q($this->plugin->gettext('countislessthan')), 'count-lt');
	$select_op->add(rcube::Q($this->plugin->gettext('countislessthanequal')), 'count-le');
	$select_op->add(rcube::Q($this->plugin->gettext('countequals')), 'count-eq');
	$select_op->add(rcube::Q($this->plugin->gettext('countnotequals')), 'count-ne');
	$select_op->add(rcube::Q($this->plugin->gettext('valueisgreaterthan')), 'value-gt');
	$select_op->add(rcube::Q($this->plugin->gettext('valueisgreaterthanequal')), 'value-ge');
	$select_op->add(rcube::Q($this->plugin->gettext('valueislessthan')), 'value-lt');
	$select_op->add(rcube::Q($this->plugin->gettext('valueislessthanequal')), 'value-le');
	$select_op->add(rcube::Q($this->plugin->gettext('valueequals')), 'value-eq');
	$select_op->add(rcube::Q($this->plugin->gettext('valuenotequals')), 'value-ne');
	}

	return $select_op->show($test);
	}

	protected function comparator_selector($comparator, $name, $id)
	{
	$select_comp = new html_select(array('name' => "_{$name}[$id]", 'id' => "{$name}_op{$id}"));
	$select_comp->add(rcube::Q($this->plugin->gettext('default')), '');
	$select_comp->add(rcube::Q($this->plugin->gettext('octet')), 'i;octet');
	$select_comp->add(rcube::Q($this->plugin->gettext('asciicasemap')), 'i;ascii-casemap');
	if (in_array('comparator-i;ascii-numeric', $this->exts)) {
	$select_comp->add(rcube::Q($this->plugin->gettext('asciinumeric')), 'i;ascii-numeric');
	}

	return $select_comp->show($comparator);
	}
	}

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