githubFork/roundcubemail.git

Fix invalid LDAP query in ACL user autocompletion (#1490591)

Aleksander Machniak

2015-11-17 818b78a89381be2f4de55c4f6a189da9379a1a3a

commit \| author \| age
48e9c1	1	<?php
T	2
	3	/**
	4	* Folders Access Control Lists Management (RFC4314, RFC2086)
	5	*
	6	* @version @package_version@
	7	* @author Aleksander Machniak <alec@alec.pl>
	8	*
	9	*
	10	* Copyright (C) 2011-2012, Kolab Systems AG
	11	*
07c6c6	12	* This program is free software: you can redistribute it and/or modify
TB	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation, either version 3 of the License, or
	15	* (at your option) any later version.
48e9c1	16	*
T	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
07c6c6	22	* You should have received a copy of the GNU General Public License
TB	23	* along with this program. If not, see http://www.gnu.org/licenses/.
48e9c1	24	*/
T	25
	26	class acl extends rcube_plugin
	27	{
	28	public $task = 'settings\|addressbook\|calendar';
	29
	30	private $rc;
	31	private $supported = null;
	32	private $mbox;
	33	private $ldap;
	34	private $specials = array('anyone', 'anonymous');
	35
	36	/**
	37	* Plugin initialization
	38	*/
	39	function init()
	40	{
	41	$this->rc = rcmail::get_instance();
	42
	43	// Register hooks
	44	$this->add_hook('folder_form', array($this, 'folder_form'));
	45	// kolab_addressbook plugin
	46	$this->add_hook('addressbook_form', array($this, 'folder_form'));
	47	$this->add_hook('calendar_form_kolab', array($this, 'folder_form'));
	48	// Plugin actions
	49	$this->register_action('plugin.acl', array($this, 'acl_actions'));
	50	$this->register_action('plugin.acl-autocomplete', array($this, 'acl_autocomplete'));
	51	}
	52
	53	/**
	54	* Handler for plugin actions (AJAX)
	55	*/
	56	function acl_actions()
	57	{
61be82	58	$action = trim(rcube_utils::get_input_value('_act', rcube_utils::INPUT_GPC));
48e9c1	59
T	60	// Connect to IMAP
	61	$this->rc->storage_init();
	62
	63	// Load localization and configuration
	64	$this->add_texts('localization/');
	65	$this->load_config();
	66
	67	if ($action == 'save') {
	68	$this->action_save();
	69	}
	70	else if ($action == 'delete') {
	71	$this->action_delete();
	72	}
	73	else if ($action == 'list') {
	74	$this->action_list();
	75	}
	76
	77	// Only AJAX actions
	78	$this->rc->output->send();
	79	}
	80
	81	/**
	82	* Handler for user login autocomplete request
	83	*/
	84	function acl_autocomplete()
	85	{
	86	$this->load_config();
	87
61be82	88	$search = rcube_utils::get_input_value('_search', rcube_utils::INPUT_GPC, true);
017c4f	89	$reqid = rcube_utils::get_input_value('_reqid', rcube_utils::INPUT_GPC);
48e9c1	90	$users = array();
43b225	91	$keys = array();
48e9c1	92
T	93	if ($this->init_ldap()) {
	94	$max = (int) $this->rc->config->get('autocomplete_max', 15);
	95	$mode = (int) $this->rc->config->get('addressbook_search_mode');
	96
	97	$this->ldap->set_pagesize($max);
	98	$result = $this->ldap->search('*', $search, $mode);
	99
	100	foreach ($result->records as $record) {
	101	$user = $record['uid'];
	102
	103	if (is_array($user)) {
	104	$user = array_filter($user);
	105	$user = $user[0];
	106	}
	107
	108	if ($user) {
43b225	109	$display = rcube_addressbook::compose_search_name($record);
AM	110	$user = array('name' => $user, 'display' => $display);
48e9c1	111	$users[] = $user;
43b225	112	$keys[] = $display ?: $user['name'];
48e9c1	113	}
T	114	}
ec2733	115
AM	116	if ($this->rc->config->get('acl_groups')) {
c1e2ce	117	$prefix = $this->rc->config->get('acl_group_prefix');
c7ac4b	118	$group_field = $this->rc->config->get('acl_group_field', 'name');
c1e2ce	119	$result = $this->ldap->list_groups($search, $mode);
ec2733	120
AM	121	foreach ($result as $record) {
c1e2ce	122	$group = $record['name'];
BN	123	$group_id = is_array($record[$group_field]) ? $record[$group_field][0] : $record[$group_field];
ec2733	124
AM	125	if ($group) {
bec873	126	$users[] = array('name' => ($prefix ? $prefix : '') . $group_id, 'display' => $group, 'type' => 'group');
ec2733	127	$keys[] = $group;
AM	128	}
	129	}
	130	}
48e9c1	131	}
T	132
43b225	133	if (count($users)) {
AM	134	// sort users index
	135	asort($keys, SORT_LOCALE_STRING);
	136	// re-sort users according to index
	137	foreach ($keys as $idx => $val) {
	138	$keys[$idx] = $users[$idx];
	139	}
	140	$users = array_values($keys);
	141	}
48e9c1	142
017c4f	143	$this->rc->output->command('ksearch_query_results', $users, $search, $reqid);
48e9c1	144	$this->rc->output->send();
T	145	}
	146
	147	/**
	148	* Handler for 'folder_form' hook
	149	*
	150	* @param array $args Hook arguments array (form data)
	151	*
	152	* @return array Hook arguments array
	153	*/
	154	function folder_form($args)
	155	{
	156	$mbox_imap = $args['options']['name'];
b866a2	157	$myrights = $args['options']['rights'];
AM	158
	159	// Edited folder name (empty in create-folder mode)
48e9c1	160	if (!strlen($mbox_imap)) {
T	161	return $args;
	162	}
	163	/*
	164	// Do nothing on protected folders (?)
	165	if ($args['options']['protected']) {
	166	return $args;
	167	}
	168	*/
	169	// Get MYRIGHTS
b866a2	170	if (empty($myrights)) {
48e9c1	171	return $args;
T	172	}
	173
	174	// Load localization and include scripts
	175	$this->load_config();
fc55bc	176	$this->specials = $this->rc->config->get('acl_specials', $this->specials);
48e9c1	177	$this->add_texts('localization/', array('deleteconfirm', 'norights',
f14784	178	'nouser', 'deleting', 'saving', 'newuser', 'editperms'));
TB	179	$this->rc->output->add_label('save', 'cancel');
48e9c1	180	$this->include_script('acl.js');
T	181	$this->rc->output->include_script('list.js');
	182	$this->include_stylesheet($this->local_skin_path().'/acl.css');
	183
	184	// add Info fieldset if it doesn't exist
	185	if (!isset($args['form']['props']['fieldsets']['info']))
	186	$args['form']['props']['fieldsets']['info'] = array(
61be82	187	'name' => $this->rc->gettext('info'),
48e9c1	188	'content' => array());
T	189
	190	// Display folder rights to 'Info' fieldset
	191	$args['form']['props']['fieldsets']['info']['content']['myrights'] = array(
61be82	192	'label' => rcube::Q($this->gettext('myrights')),
48e9c1	193	'value' => $this->acl2text($myrights)
T	194	);
	195
	196	// Return if not folder admin
	197	if (!in_array('a', $myrights)) {
	198	return $args;
	199	}
	200
	201	// The 'Sharing' tab
	202	$this->mbox = $mbox_imap;
	203	$this->rc->output->set_env('acl_users_source', (bool) $this->rc->config->get('acl_users_source'));
	204	$this->rc->output->set_env('mailbox', $mbox_imap);
	205	$this->rc->output->add_handlers(array(
	206	'acltable' => array($this, 'templ_table'),
	207	'acluser' => array($this, 'templ_user'),
	208	'aclrights' => array($this, 'templ_rights'),
	209	));
	210
	211	$this->rc->output->set_env('autocomplete_max', (int)$this->rc->config->get('autocomplete_max', 15));
	212	$this->rc->output->set_env('autocomplete_min_length', $this->rc->config->get('autocomplete_min_length'));
	213	$this->rc->output->add_label('autocompletechars', 'autocompletemore');
	214
	215	$args['form']['sharing'] = array(
61be82	216	'name' => rcube::Q($this->gettext('sharing')),
48e9c1	217	'content' => $this->rc->output->parse('acl.table', false, false),
T	218	);
	219
	220	return $args;
	221	}
	222
	223	/**
	224	* Creates ACL rights table
	225	*
	226	* @param array $attrib Template object attributes
	227	*
	228	* @return string HTML Content
	229	*/
	230	function templ_table($attrib)
	231	{
	232	if (empty($attrib['id']))
	233	$attrib['id'] = 'acl-table';
	234
	235	$out = $this->list_rights($attrib);
	236
	237	$this->rc->output->add_gui_object('acltable', $attrib['id']);
	238
	239	return $out;
	240	}
	241
	242	/**
	243	* Creates ACL rights form (rights list part)
	244	*
	245	* @param array $attrib Template object attributes
	246	*
	247	* @return string HTML Content
	248	*/
	249	function templ_rights($attrib)
	250	{
	251	// Get supported rights
	252	$supported = $this->rights_supported();
	253
1aa497	254	// give plugins the opportunity to adjust this list
TB	255	$data = $this->rc->plugins->exec_hook('acl_rights_supported',
	256	array('rights' => $supported, 'folder' => $this->mbox, 'labels' => array()));
	257	$supported = $data['rights'];
	258
48e9c1	259	// depending on server capability either use 'te' or 'd' for deleting msgs
T	260	$deleteright = implode(array_intersect(str_split('ted'), $supported));
	261
	262	$out = '';
	263	$ul = '';
	264	$input = new html_checkbox();
	265
	266	// Advanced rights
	267	$attrib['id'] = 'advancedrights';
2db42c	268	foreach ($supported as $key => $val) {
AM	269	$id = "acl$val";
48e9c1	270	$ul .= html::tag('li', null,
T	271	$input->show('', array(
	272	'name' => "acl[$val]", 'value' => $val, 'id' => $id))
	273	. html::label(array('for' => $id, 'title' => $this->gettext('longacl'.$val)),
	274	$this->gettext('acl'.$val)));
	275	}
	276
	277	$out = html::tag('ul', $attrib, $ul, html::$common_attrib);
	278
	279	// Simple rights
	280	$ul = '';
	281	$attrib['id'] = 'simplerights';
	282	$items = array(
	283	'read' => 'lrs',
	284	'write' => 'wi',
	285	'delete' => $deleteright,
	286	'other' => preg_replace('/[lrswi'.$deleteright.']/', '', implode($supported)),
	287	);
	288
1aa497	289	// give plugins the opportunity to adjust this list
TB	290	$data = $this->rc->plugins->exec_hook('acl_rights_simple',
	291	array('rights' => $items, 'folder' => $this->mbox, 'labels' => array(), 'titles' => array()));
	292
	293	foreach ($data['rights'] as $key => $val) {
48e9c1	294	$id = "acl$key";
T	295	$ul .= html::tag('li', null,
	296	$input->show('', array(
	297	'name' => "acl[$val]", 'value' => $val, 'id' => $id))
1aa497	298	. html::label(array('for' => $id, 'title' => $data['titles'][$key] ?: $this->gettext('longacl'.$key)),
TB	299	$data['labels'][$key] ?: $this->gettext('acl'.$key)));
48e9c1	300	}
T	301
	302	$out .= "\n" . html::tag('ul', $attrib, $ul, html::$common_attrib);
	303
1aa497	304	$this->rc->output->set_env('acl_items', $data['rights']);
48e9c1	305
T	306	return $out;
	307	}
	308
	309	/**
	310	* Creates ACL rights form (user part)
	311	*
	312	* @param array $attrib Template object attributes
	313	*
	314	* @return string HTML Content
	315	*/
	316	function templ_user($attrib)
	317	{
	318	// Create username input
	319	$attrib['name'] = 'acluser';
	320
	321	$textfield = new html_inputfield($attrib);
	322
62c451	323	$fields['user'] = html::label(array('for' => $attrib['id']), $this->gettext('username'))
48e9c1	324	. ' ' . $textfield->show();
T	325
	326	// Add special entries
	327	if (!empty($this->specials)) {
	328	foreach ($this->specials as $key) {
	329	$fields[$key] = html::label(array('for' => 'id'.$key), $this->gettext($key));
	330	}
	331	}
	332
	333	$this->rc->output->set_env('acl_specials', $this->specials);
	334
	335	// Create list with radio buttons
	336	if (count($fields) > 1) {
	337	$ul = '';
	338	$radio = new html_radiobutton(array('name' => 'usertype'));
	339	foreach ($fields as $key => $val) {
	340	$ul .= html::tag('li', null, $radio->show($key == 'user' ? 'user' : '',
	341	array('value' => $key, 'id' => 'id'.$key))
	342	. $val);
	343	}
	344
f14784	345	$out = html::tag('ul', array('id' => 'usertype', 'class' => $attrib['class']), $ul, html::$common_attrib);
48e9c1	346	}
T	347	// Display text input alone
	348	else {
	349	$out = $fields['user'];
	350	}
	351
	352	return $out;
	353	}
	354
	355	/**
	356	* Creates ACL rights table
	357	*
	358	* @param array $attrib Template object attributes
	359	*
	360	* @return string HTML Content
	361	*/
	362	private function list_rights($attrib=array())
	363	{
	364	// Get ACL for the folder
	365	$acl = $this->rc->storage->get_acl($this->mbox);
	366
	367	if (!is_array($acl)) {
	368	$acl = array();
	369	}
	370
	371	// Keep special entries (anyone/anonymous) on top of the list
	372	if (!empty($this->specials) && !empty($acl)) {
	373	foreach ($this->specials as $key) {
	374	if (isset($acl[$key])) {
	375	$acl_special[$key] = $acl[$key];
	376	unset($acl[$key]);
	377	}
	378	}
	379	}
	380
	381	// Sort the list by username
	382	uksort($acl, 'strnatcasecmp');
	383
	384	if (!empty($acl_special)) {
	385	$acl = array_merge($acl_special, $acl);
	386	}
	387
	388	// Get supported rights and build column names
	389	$supported = $this->rights_supported();
	390
1aa497	391	// give plugins the opportunity to adjust this list
TB	392	$data = $this->rc->plugins->exec_hook('acl_rights_supported',
	393	array('rights' => $supported, 'folder' => $this->mbox, 'labels' => array()));
	394	$supported = $data['rights'];
	395
48e9c1	396	// depending on server capability either use 'te' or 'd' for deleting msgs
T	397	$deleteright = implode(array_intersect(str_split('ted'), $supported));
	398
	399	// Use advanced or simple (grouped) rights
	400	$advanced = $this->rc->config->get('acl_advanced_mode');
	401
	402	if ($advanced) {
	403	$items = array();
	404	foreach ($supported as $sup) {
	405	$items[$sup] = $sup;
	406	}
	407	}
	408	else {
	409	$items = array(
	410	'read' => 'lrs',
	411	'write' => 'wi',
	412	'delete' => $deleteright,
	413	'other' => preg_replace('/[lrswi'.$deleteright.']/', '', implode($supported)),
	414	);
1aa497	415
TB	416	// give plugins the opportunity to adjust this list
	417	$data = $this->rc->plugins->exec_hook('acl_rights_simple',
	418	array('rights' => $items, 'folder' => $this->mbox, 'labels' => array()));
	419	$items = $data['rights'];
48e9c1	420	}
T	421
	422	// Create the table
	423	$attrib['noheader'] = true;
	424	$table = new html_table($attrib);
	425
	426	// Create table header
	427	$table->add_header('user', $this->gettext('identifier'));
	428	foreach (array_keys($items) as $key) {
1aa497	429	$label = $data['labels'][$key] ?: $this->gettext('shortacl'.$key);
48e9c1	430	$table->add_header(array('class' => 'acl'.$key, 'title' => $label), $label);
T	431	}
	432
	433	$js_table = array();
	434	foreach ($acl as $user => $rights) {
	435	if ($this->rc->storage->conn->user == $user) {
	436	continue;
	437	}
	438
	439	// filter out virtual rights (c or d) the server may return
	440	$userrights = array_intersect($rights, $supported);
61be82	441	$userid = rcube_utils::html_identifier($user);
48e9c1	442
T	443	if (!empty($this->specials) && in_array($user, $this->specials)) {
	444	$user = $this->gettext($user);
	445	}
	446
	447	$table->add_row(array('id' => 'rcmrow'.$userid));
62c451	448	$table->add('user', html::a(array('id' => 'rcmlinkrow'.$userid), rcube::Q($user)));
48e9c1	449
T	450	foreach ($items as $key => $right) {
	451	$in = $this->acl_compare($userrights, $right);
	452	switch ($in) {
	453	case 2: $class = 'enabled'; break;
	454	case 1: $class = 'partial'; break;
	455	default: $class = 'disabled'; break;
	456	}
	457	$table->add('acl' . $key . ' ' . $class, '');
	458	}
	459
	460	$js_table[$userid] = implode($userrights);
	461	}
	462
	463	$this->rc->output->set_env('acl', $js_table);
	464	$this->rc->output->set_env('acl_advanced', $advanced);
	465
	466	$out = $table->show();
	467
	468	return $out;
	469	}
	470
	471	/**
	472	* Handler for ACL update/create action
	473	*/
	474	private function action_save()
	475	{
681ba6	476	$mbox = trim(rcube_utils::get_input_value('_mbox', rcube_utils::INPUT_POST, true)); // UTF7-IMAP
AM	477	$user = trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST));
	478	$acl = trim(rcube_utils::get_input_value('_acl', rcube_utils::INPUT_POST));
	479	$oldid = trim(rcube_utils::get_input_value('_old', rcube_utils::INPUT_POST));
48e9c1	480
c027ba	481	$acl = array_intersect(str_split($acl), $this->rights_supported());
AM	482	$users = $oldid ? array($user) : explode(',', $user);
	483	$result = 0;
48e9c1	484
T	485	foreach ($users as $user) {
ec2733	486	$user = trim($user);
AM	487	$prefix = $this->rc->config->get('acl_groups') ? $this->rc->config->get('acl_group_prefix') : '';
48e9c1	488
ec2733	489	if ($prefix && strpos($user, $prefix) === 0) {
AM	490	$username = $user;
	491	}
	492	else if (!empty($this->specials) && in_array($user, $this->specials)) {
48e9c1	493	$username = $this->gettext($user);
T	494	}
b61041	495	else if (!empty($user)) {
48e9c1	496	if (!strpos($user, '@') && ($realm = $this->get_realm())) {
61be82	497	$user .= '@' . rcube_utils::idn_to_ascii(preg_replace('/^@/', '', $realm));
48e9c1	498	}
T	499	$username = $user;
	500	}
	501
	502	if (!$acl \|\| !$user \|\| !strlen($mbox)) {
	503	continue;
	504	}
	505
dfb926	506	$user = $this->mod_login($user);
AM	507	$username = $this->mod_login($username);
	508
48e9c1	509	if ($user != $_SESSION['username'] && $username != $_SESSION['username']) {
T	510	if ($this->rc->storage->set_acl($mbox, $user, $acl)) {
61be82	511	$ret = array('id' => rcube_utils::html_identifier($user),
48e9c1	512	'username' => $username, 'acl' => implode($acl), 'old' => $oldid);
T	513	$this->rc->output->command('acl_update', $ret);
	514	$result++;
	515	}
	516	}
	517	}
	518
	519	if ($result) {
	520	$this->rc->output->show_message($oldid ? 'acl.updatesuccess' : 'acl.createsuccess', 'confirmation');
	521	}
	522	else {
	523	$this->rc->output->show_message($oldid ? 'acl.updateerror' : 'acl.createerror', 'error');
	524	}
	525	}
	526
	527	/**
	528	* Handler for ACL delete action
	529	*/
	530	private function action_delete()
	531	{
681ba6	532	$mbox = trim(rcube_utils::get_input_value('_mbox', rcube_utils::INPUT_POST, true)); //UTF7-IMAP
AM	533	$user = trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST));
48e9c1	534
T	535	$user = explode(',', $user);
	536
	537	foreach ($user as $u) {
	538	$u = trim($u);
	539	if ($this->rc->storage->delete_acl($mbox, $u)) {
61be82	540	$this->rc->output->command('acl_remove_row', rcube_utils::html_identifier($u));
48e9c1	541	}
T	542	else {
	543	$error = true;
	544	}
	545	}
	546
	547	if (!$error) {
	548	$this->rc->output->show_message('acl.deletesuccess', 'confirmation');
	549	}
	550	else {
	551	$this->rc->output->show_message('acl.deleteerror', 'error');
	552	}
	553	}
	554
	555	/**
	556	* Handler for ACL list update action (with display mode change)
	557	*/
	558	private function action_list()
	559	{
	560	if (in_array('acl_advanced_mode', (array)$this->rc->config->get('dont_override'))) {
	561	return;
	562	}
	563
61be82	564	$this->mbox = trim(rcube_utils::get_input_value('_mbox', rcube_utils::INPUT_GPC, true)); // UTF7-IMAP
AM	565	$advanced = trim(rcube_utils::get_input_value('_mode', rcube_utils::INPUT_GPC));
48e9c1	566	$advanced = $advanced == 'advanced' ? true : false;
T	567
	568	// Save state in user preferences
	569	$this->rc->user->save_prefs(array('acl_advanced_mode' => $advanced));
	570
	571	$out = $this->list_rights();
	572
	573	$out = preg_replace(array('/^<table[^>]+>/', '/<\/table>$/'), '', $out);
	574
	575	$this->rc->output->command('acl_list_update', $out);
	576	}
	577
	578	/**
	579	* Creates <UL> list with descriptive access rights
	580	*
	581	* @param array $rights MYRIGHTS result
	582	*
	583	* @return string HTML content
	584	*/
	585	function acl2text($rights)
	586	{
	587	if (empty($rights)) {
	588	return '';
	589	}
	590
	591	$supported = $this->rights_supported();
	592	$list = array();
	593	$attrib = array(
	594	'name' => 'rcmyrights',
	595	'style' => 'margin:0; padding:0 15px;',
	596	);
	597
	598	foreach ($supported as $right) {
	599	if (in_array($right, $rights)) {
61be82	600	$list[] = html::tag('li', null, rcube::Q($this->gettext('acl' . $right)));
48e9c1	601	}
T	602	}
	603
	604	if (count($list) == count($supported))
61be82	605	return rcube::Q($this->gettext('aclfull'));
48e9c1	606
T	607	return html::tag('ul', $attrib, implode("\n", $list));
	608	}
	609
	610	/**
	611	* Compares two ACLs (according to supported rights)
	612	*
	613	* @param array $acl1 ACL rights array (or string)
	614	* @param array $acl2 ACL rights array (or string)
	615	*
	616	* @param int Comparision result, 2 - full match, 1 - partial match, 0 - no match
	617	*/
	618	function acl_compare($acl1, $acl2)
	619	{
	620	if (!is_array($acl1)) $acl1 = str_split($acl1);
	621	if (!is_array($acl2)) $acl2 = str_split($acl2);
	622
	623	$rights = $this->rights_supported();
	624
	625	$acl1 = array_intersect($acl1, $rights);
	626	$acl2 = array_intersect($acl2, $rights);
	627	$res = array_intersect($acl1, $acl2);
	628
	629	$cnt1 = count($res);
	630	$cnt2 = count($acl2);
	631
	632	if ($cnt1 == $cnt2)
	633	return 2;
	634	else if ($cnt1)
	635	return 1;
	636	else
	637	return 0;
	638	}
	639
	640	/**
	641	* Get list of supported access rights (according to RIGHTS capability)
	642	*
	643	* @return array List of supported access rights abbreviations
	644	*/
	645	function rights_supported()
	646	{
	647	if ($this->supported !== null) {
	648	return $this->supported;
	649	}
	650
	651	$capa = $this->rc->storage->get_capability('RIGHTS');
	652
	653	if (is_array($capa)) {
	654	$rights = strtolower($capa[0]);
	655	}
	656	else {
	657	$rights = 'cd';
	658	}
	659
	660	return $this->supported = str_split('lrswi' . $rights . 'pa');
	661	}
	662
	663	/**
	664	* Username realm detection.
	665	*
	666	* @return string Username realm (domain)
	667	*/
	668	private function get_realm()
	669	{
	670	// When user enters a username without domain part, realm
654ac1	671	// allows to add it to the username (and display correct username in the table)
48e9c1	672
T	673	if (isset($_SESSION['acl_username_realm'])) {
	674	return $_SESSION['acl_username_realm'];
	675	}
	676
	677	// find realm in username of logged user (?)
	678	list($name, $domain) = explode('@', $_SESSION['username']);
	679
	680	// Use (always existent) ACL entry on the INBOX for the user to determine
	681	// whether or not the user ID in ACL entries need to be qualified and how
	682	// they would need to be qualified.
	683	if (empty($domain)) {
	684	$acl = $this->rc->storage->get_acl('INBOX');
	685	if (is_array($acl)) {
	686	$regexp = '/^' . preg_quote($_SESSION['username'], '/') . '@(.*)$/';
	687	foreach (array_keys($acl) as $name) {
	688	if (preg_match($regexp, $name, $matches)) {
	689	$domain = $matches[1];
	690	break;
	691	}
	692	}
	693	}
	694	}
	695
	696	return $_SESSION['acl_username_realm'] = $domain;
	697	}
	698
	699	/**
	700	* Initializes autocomplete LDAP backend
	701	*/
	702	private function init_ldap()
	703	{
43b225	704	if ($this->ldap) {
48e9c1	705	return $this->ldap->ready;
43b225	706	}
48e9c1	707
T	708	// get LDAP config
	709	$config = $this->rc->config->get('acl_users_source');
	710
	711	if (empty($config)) {
	712	return false;
	713	}
	714
	715	// not an array, use configured ldap_public source
	716	if (!is_array($config)) {
	717	$ldap_config = (array) $this->rc->config->get('ldap_public');
43b225	718	$config = $ldap_config[$config];
48e9c1	719	}
T	720
	721	$uid_field = $this->rc->config->get('acl_users_field', 'mail');
	722	$filter = $this->rc->config->get('acl_users_filter');
	723
	724	if (empty($uid_field) \|\| empty($config)) {
	725	return false;
	726	}
	727
	728	// get name attribute
	729	if (!empty($config['fieldmap'])) {
	730	$name_field = $config['fieldmap']['name'];
	731	}
	732	// ... no fieldmap, use the old method
	733	if (empty($name_field)) {
	734	$name_field = $config['name_field'];
	735	}
	736
	737	// add UID field to fieldmap, so it will be returned in a record with name
0a96bd	738	$config['fieldmap']['name'] = $name_field;
AM	739	$config['fieldmap']['uid'] = $uid_field;
48e9c1	740
T	741	// search in UID and name fields
818b78	742	// $name_field can be in a form of <field>:<modifier> (#1490591)
AM	743	$name_field = preg_replace('/:.*$/', '', $name_field);
	744	$search = array_unique(array($name_field, $uid_field));
	745
	746	$config['search_fields'] = $search;
48e9c1	747	$config['required_fields'] = array($uid_field);
T	748
	749	// set search filter
43b225	750	if ($filter) {
48e9c1	751	$config['filter'] = $filter;
43b225	752	}
48e9c1	753
T	754	// disable vlv
	755	$config['vlv'] = false;
	756
	757	// Initialize LDAP connection
	758	$this->ldap = new rcube_ldap($config,
	759	$this->rc->config->get('ldap_debug'),
	760	$this->rc->config->mail_domain($_SESSION['imap_host']));
	761
	762	return $this->ldap->ready;
	763	}
dfb926	764
AM	765	/**
	766	* Modify user login according to 'login_lc' setting
	767	*/
	768	protected function mod_login($user)
	769	{
	770	$login_lc = $this->rc->config->get('login_lc');
	771
	772	if ($login_lc === true \|\| $login_lc == 2) {
	773	$user = mb_strtolower($user);
	774	}
	775	// lowercase domain name
	776	else if ($login_lc && strpos($user, '@')) {
	777	list($local, $domain) = explode('@', $user);
	778	$user = $local . '@' . mb_strtolower($domain);
	779	}
	780
	781	return $user;
	782	}
48e9c1	783	}