From be696ee3da23636b5c4d58b03519a97b9058ffa8 Mon Sep 17 00:00:00 2001
From: Dmitriy Simushev <simushevds@ossg.ru>
Date: Mon, 16 Jul 2012 14:26:53 +0000
Subject: [PATCH] Replaced settings functions with Settings class

---
 src/messenger/webim/b.php                     |  3 +-
 src/messenger/webim/client.php                | 11 ++-
 src/messenger/webim/install/index.php         |  7 +-
 src/messenger/webim/leavemessage.php          |  9 +-
 src/messenger/webim/libs/chat.php             | 88 +++++++++----------
 src/messenger/webim/libs/classes/settings.php |  1 +
 src/messenger/webim/libs/common.php           | 75 +---------------
 src/messenger/webim/libs/demothread.php       |  5 +-
 src/messenger/webim/libs/getcode.php          |  7 +-
 src/messenger/webim/libs/groups.php           |  5 +-
 src/messenger/webim/libs/operator.php         | 45 ++++------
 .../webim/libs/operator_settings.php          |  3 +-
 src/messenger/webim/libs/settings.php         | 16 +---
 src/messenger/webim/libs/statistics.php       |  4 +-
 src/messenger/webim/libs/userinfo.php         | 12 ++-
 src/messenger/webim/mail.php                  |  4 +-
 src/messenger/webim/operator/agent.php        |  3 +-
 src/messenger/webim/operator/avatar.php       |  3 +-
 src/messenger/webim/operator/canned.php       |  2 -
 src/messenger/webim/operator/cannededit.php   |  1 -
 src/messenger/webim/operator/features.php     | 13 ++-
 src/messenger/webim/operator/getcode.php      |  4 +-
 src/messenger/webim/operator/groups.php       |  6 +-
 src/messenger/webim/operator/history.php      |  2 -
 src/messenger/webim/operator/index.php        |  5 +-
 .../webim/operator/invitationstate.php        |  2 -
 src/messenger/webim/operator/invite.php       |  4 +-
 src/messenger/webim/operator/performance.php  | 13 ++-
 src/messenger/webim/operator/settings.php     | 16 ++--
 src/messenger/webim/operator/themes.php       |  1 -
 .../webim/operator/threadprocessor.php        |  1 -
 src/messenger/webim/operator/tracked.php      |  3 +-
 src/messenger/webim/operator/update.php       | 24 +++--
 src/messenger/webim/operator/userhistory.php  |  1 -
 src/messenger/webim/operator/users.php        |  9 +-
 src/messenger/webim/request.php               |  4 +-
 src/messenger/webim/thread.php                |  3 +-
 37 files changed, 142 insertions(+), 273 deletions(-)

diff --git a/src/messenger/webim/b.php b/src/messenger/webim/b.php
index 93610209..6713114e 100644
--- a/src/messenger/webim/b.php
+++ b/src/messenger/webim/b.php
@@ -37,8 +37,7 @@ if(!$lang || !locale_exists($lang)) {
 
 $groupid = verifyparam( "group", "/^\d{1,8}$/", "");
 if($groupid) {
-	loadsettings();
-	if($settings['enablegroups'] == '1') {
+	if(Settings::get('enablegroups') == '1') {
 		$group = group_by_id($groupid);
 		if(!$group) {
 			$groupid = "";
diff --git a/src/messenger/webim/client.php b/src/messenger/webim/client.php
index 210c988d..eb179c9a 100644
--- a/src/messenger/webim/client.php
+++ b/src/messenger/webim/client.php
@@ -23,8 +23,7 @@ require_once('libs/expand.php');
 require_once('libs/captcha.php');
 require_once('libs/invitation.php');
 
-loadsettings();
-if($settings['enablessl'] == "1" && $settings['forcessl'] == "1") {
+if(Settings::get('enablessl') == "1" && Settings::get('forcessl') == "1") {
 	if(!is_secure_request()) {
 		$requested = $_SERVER['PHP_SELF'];
 		if($_SERVER['REQUEST_METHOD'] == 'GET' && $_SERVER['QUERY_STRING']) {
@@ -47,7 +46,7 @@ if( !isset($_GET['token']) || !isset($_GET['thread']) ) {
 		$groupid = "";
 		$groupname = "";
 		$group = NULL;
-		if($settings['enablegroups'] == '1') {
+		if(Settings::get('enablegroups') == '1') {
 			$groupid = verifyparam( "group", "/^\d{1,8}$/", "");
 			if($groupid) {
 				$group = group_by_id($groupid);
@@ -67,7 +66,7 @@ if( !isset($_GET['token']) || !isset($_GET['thread']) ) {
 			$email = getparam("email");
 			$referrer = urldecode(getparam("referrer"));
 
-			if($settings['usercanchangename'] == "1" && isset($_POST['name'])) {
+			if(Settings::get('usercanchangename') == "1" && isset($_POST['name'])) {
 				$newname = getparam("name");
 				if($newname != $visitor['name']) {
 					$data = strtr(base64_encode(myiconv($webim_encoding,"utf-8",$newname)), '+/=', '-_,');
@@ -95,8 +94,8 @@ if( !isset($_GET['token']) || !isset($_GET['thread']) ) {
 		}
 
 		$invitation_state = invitation_state($_SESSION['visitorid']);
-		$visitor_is_invited = $settings['enabletracking'] && $invitation_state['invited'] && !$invitation_state['threadid'];
-		if($settings['enablepresurvey'] == '1' && !(isset($_POST['survey']) && $_POST['survey'] == 'on') && !$visitor_is_invited) {
+		$visitor_is_invited = Settings::get('enabletracking') && $invitation_state['invited'] && !$invitation_state['threadid'];
+		if(Settings::get('enablepresurvey') == '1' && !(isset($_POST['survey']) && $_POST['survey'] == 'on') && !$visitor_is_invited) {
 			$page = array();
 			setup_logo($group);
 			setup_survey($visitor['name'], $email, $groupid, $info, $referrer);
diff --git a/src/messenger/webim/install/index.php b/src/messenger/webim/install/index.php
index b73556d4..d9e6001d 100644
--- a/src/messenger/webim/install/index.php
+++ b/src/messenger/webim/install/index.php
@@ -295,7 +295,7 @@ function add_canned_messages($link){
 
 function check_status()
 {
-	global $page, $webimroot, $settings, $dbversion;
+	global $page, $webimroot, $dbversion;
 
 	$page['done'][] = getlocal2("install.0.php", array(phpversion()));
 
@@ -343,9 +343,8 @@ function check_status()
 
 	mysql_close($link);
 
-	loadsettings();
-	$settings['dbversion'] = $dbversion;
-	update_settings();
+	Settings::set('dbversion', $dbversion);
+	Settings::update();
 }
 
 check_status();
diff --git a/src/messenger/webim/leavemessage.php b/src/messenger/webim/leavemessage.php
index 94da339d..e5318cae 100644
--- a/src/messenger/webim/leavemessage.php
+++ b/src/messenger/webim/leavemessage.php
@@ -46,8 +46,7 @@ function store_message($name, $email, $info, $message,$groupid,$referrer) {
 $groupid = "";
 $groupname = "";
 $group = NULL;
-loadsettings();
-if($settings['enablegroups'] == '1') {
+if(Settings::get('enablegroups') == '1') {
 	$groupid = verifyparam( "group", "/^\d{1,8}$/", "");
 	if($groupid) {
 		$group = group_by_id($groupid);
@@ -77,7 +76,7 @@ if( !$email ) {
 	}
 }
 
-if($settings["enablecaptcha"] == "1" && can_show_captcha()) {
+if(Settings::get("enablecaptcha") == "1" && can_show_captcha()) {
 	$captcha = getparam('captcha');
 	$original = isset($_SESSION["mibew_captcha"]) ? $_SESSION["mibew_captcha"] : "";
 	if(empty($original) || empty($captcha) || $captcha != $original) {
@@ -93,7 +92,7 @@ if( count($errors) > 0 ) {
 	exit;
 }
 
-$message_locale = $settings['left_messages_locale'];
+$message_locale = Settings::get('left_messages_locale');
 if(!locale_exists($message_locale)) {
 	$message_locale = $home_locale;
 }
@@ -115,7 +114,7 @@ if (isset($group) && !empty($group['vcemail'])) {
 }
 
 if (empty($inbox_mail)) {
-	$inbox_mail = $settings['email'];
+	$inbox_mail = Settings::get('email');
 }
 
 if($inbox_mail) {
diff --git a/src/messenger/webim/libs/chat.php b/src/messenger/webim/libs/chat.php
index 83702360..a5fa9d80 100644
--- a/src/messenger/webim/libs/chat.php
+++ b/src/messenger/webim/libs/chat.php
@@ -175,7 +175,7 @@ function get_messages($threadid, $meth, $isuser, &$lastid)
 
 function print_thread_messages($thread, $token, $lastid, $isuser, $format, $agentid = null)
 {
-	global $webim_encoding, $webimroot, $connection_timeout, $settings;
+	global $webim_encoding, $webimroot, $connection_timeout;
 	$threadid = $thread['threadid'];
 	$istyping = abs($thread['current'] - $thread[$isuser ? "lpagent" : "lpuser"]) < $connection_timeout
 				&& $thread[$isuser ? "agentTyping" : "userTyping"] == "1" ? "1" : "0";
@@ -190,7 +190,6 @@ function print_thread_messages($thread, $token, $lastid, $isuser, $format, $agen
 		}
 		print("</thread>");
 	} else if ($format == "html") {
-		loadsettings();
 		$output = get_messages($threadid, "html", $isuser, $lastid);
 
 		start_html_output();
@@ -200,7 +199,7 @@ function print_thread_messages($thread, $token, $lastid, $isuser, $format, $agen
 				"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">" .
 				"<html>\n<head>\n" .
 				"<link href=\"$webimroot/styles/default/chat.css\" rel=\"stylesheet\" type=\"text/css\">\n" .
-				"<meta http-equiv=\"Refresh\" content=\"" . $settings['updatefrequency_oldchat'] . "; URL=$url&amp;sn=11\">\n" .
+				"<meta http-equiv=\"Refresh\" content=\"" . Settings::get('updatefrequency_oldchat') . "; URL=$url&amp;sn=11\">\n" .
 				"<meta http-equiv=\"Pragma\" content=\"no-cache\">\n" .
 				"<title>chat</title>\n" .
 				"</head>\n" .
@@ -219,11 +218,13 @@ function print_thread_messages($thread, $token, $lastid, $isuser, $format, $agen
 
 function get_user_name($username, $addr, $id)
 {
-	global $settings;
-	loadsettings();
-	return str_replace("{addr}", $addr,
-					   str_replace("{id}", $id,
-								   str_replace("{name}", $username, $settings['usernamepattern'])));
+	return str_replace(
+		"{addr}", $addr,
+		str_replace(
+			"{id}", $id,
+			str_replace("{name}", $username, Settings::get('usernamepattern'))
+		)
+	);
 }
 
 function is_ajax_browser($browserid, $ver, $useragent)
@@ -306,27 +307,26 @@ function needsFramesrc()
 
 function setup_logo($group = NULL)
 {
-	global $page, $settings;
-	loadsettings();
+	global $page;
 	$toplevelgroup = (!$group)?array():get_top_level_group($group);
-	$page['ct.company.name'] = topage(empty($toplevelgroup['vctitle'])?$settings['title']:$toplevelgroup['vctitle']);
-	$page['ct.company.chatLogoURL'] = topage(empty($toplevelgroup['vclogo'])?$settings['logo']:$toplevelgroup['vclogo']);
-	$page['webimHost'] = topage(empty($toplevelgroup['vchosturl'])?$settings['hosturl']:$toplevelgroup['vchosturl']);
+	$page['ct.company.name'] = topage(empty($toplevelgroup['vctitle'])?Settings::get('title'):$toplevelgroup['vctitle']);
+	$page['ct.company.chatLogoURL'] = topage(empty($toplevelgroup['vclogo'])?Settings::get('logo'):$toplevelgroup['vclogo']);
+	$page['webimHost'] = topage(empty($toplevelgroup['vchosturl'])?Settings::get('hosturl'):$toplevelgroup['vchosturl']);
 }
 
 function setup_leavemessage($name, $email, $message, $groupid, $groupname, $info, $referrer, $canshowcaptcha)
 {
-	global $settings, $page;
+	global $page;
 	$page['formname'] = topage($name);
 	$page['formemail'] = topage($email);
 	$page['formmessage'] = $message ? topage($message) : "";
-	$page['showcaptcha'] = $settings["enablecaptcha"] == "1" && $canshowcaptcha ? "1" : "";
+	$page['showcaptcha'] = Settings::get("enablecaptcha") == "1" && $canshowcaptcha ? "1" : "";
 	$page['formgroupid'] = $groupid;
 	$page['formgroupname'] = $groupname;
 	$page['forminfo'] = topage($info);
 	$page['referrer'] = urlencode(topage($referrer));
 
-	if ($settings['enablegroups'] == '1') {
+	if (Settings::get('enablegroups') == '1') {
 		$groups = setup_groups_select($groupid, false);
 		if ($groups) {
 			$page['groups'] = $groups['select'];
@@ -339,7 +339,7 @@ function setup_leavemessage($name, $email, $message, $groupid, $groupname, $info
 
 function setup_survey($name, $email, $groupid, $info, $referrer)
 {
-	global $settings, $page;
+	global $page;
 
 	$page['formname'] = topage($name);
 	$page['formemail'] = topage($email);
@@ -347,7 +347,7 @@ function setup_survey($name, $email, $groupid, $info, $referrer)
 	$page['forminfo'] = topage($info);
 	$page['referrer'] = urlencode(topage($referrer));
 
-	if ($settings['enablegroups'] == '1' && $settings["surveyaskgroup"] == "1") {
+	if (Settings::get('enablegroups') == '1' && Settings::get('surveyaskgroup') == '1') {
 		$groups = setup_groups_select($groupid, true);
 		if ($groups) {
 			$page['groups'] = $groups['select'];
@@ -356,15 +356,13 @@ function setup_survey($name, $email, $groupid, $info, $referrer)
 		}
 	}
 
-	$page['showemail'] = $settings["surveyaskmail"] == "1" ? "1" : "";
-	$page['showmessage'] = $settings["surveyaskmessage"] == "1" ? "1" : "";
-	$page['showname'] = $settings['usercanchangename'] == "1" ? "1" : "";
+	$page['showemail'] = Settings::get("surveyaskmail") == "1" ? "1" : "";
+	$page['showmessage'] = Settings::get("surveyaskmessage") == "1" ? "1" : "";
+	$page['showname'] = Settings::get('usercanchangename') == "1" ? "1" : "";
 }
 
 function setup_groups_select($groupid, $markoffline)
 {
-	global $settings;
-
 	$showgroups = ($groupid == '')?true:group_has_children($groupid);
 	if (!$showgroups) {
 		return false;
@@ -384,7 +382,7 @@ function setup_groups_select($groupid, $markoffline)
 		if ($k['inumofagents'] == 0 || ($groupid && $k['parent'] != $groupid && $k['groupid'] != $groupid )) {
 			continue;
 		}
-		if ($k['ilastseen'] !== NULL && $k['ilastseen'] < $settings['online_timeout']) {
+		if ($k['ilastseen'] !== NULL && $k['ilastseen'] < Settings::get('online_timeout')) {
 			if (!$selectedgroupid) {
 				$selectedgroupid = $k['groupid']; // select first online group
 			}
@@ -408,8 +406,7 @@ function setup_groups_select($groupid, $markoffline)
 
 function setup_chatview_for_user($thread, $level)
 {
-	global $page, $webimroot, $settings;
-	loadsettings();
+	global $page, $webimroot;
 	$page = array();
 	if (! empty($thread['groupid'])) {
 		$group = group_by_id($thread['groupid']);
@@ -427,12 +424,12 @@ function setup_chatview_for_user($thread, $level)
 	$page['ct.chatThreadId'] = $thread['threadid'];
 	$page['ct.token'] = $thread['ltoken'];
 	$page['ct.user.name'] = htmlspecialchars(topage($thread['userName']));
-	$page['canChangeName'] = $settings['usercanchangename'] == "1";
-	$page['chat.title'] = topage(empty($group['vcchattitle'])?$settings['chattitle']:$group['vcchattitle']);
+	$page['canChangeName'] = Settings::get('usercanchangename') == "1";
+	$page['chat.title'] = topage(empty($group['vcchattitle'])?Settings::get('chattitle'):$group['vcchattitle']);
 	$page['chat.close.confirmation'] = getlocal('chat.close.confirmation');
 
 	setup_logo($group);
-	if ($settings['sendmessagekey'] == 'enter') {
+	if (Settings::get('sendmessagekey') == 'enter') {
 		$page['send_shortcut'] = "Enter";
 		$page['ignorectrl'] = 1;
 	} else {
@@ -443,20 +440,19 @@ function setup_chatview_for_user($thread, $level)
 	$params = "thread=" . $thread['threadid'] . "&amp;token=" . $thread['ltoken'];
 	$page['mailLink'] = "$webimroot/client.php?" . $params . "&amp;level=$level&amp;act=mailthread";
 
-	if ($settings['enablessl'] == "1" && !is_secure_request()) {
+	if (Settings::get('enablessl') == "1" && !is_secure_request()) {
 		$page['sslLink'] = get_app_location(true, true) . "/client.php?" . $params . "&amp;level=$level";
 	}
 
 	$page['isOpera95'] = is_agent_opera95();
 	$page['neediframesrc'] = needsFramesrc();
 
-	$page['frequency'] = $settings['updatefrequency_chat'];
+	$page['frequency'] = Settings::get('updatefrequency_chat');
 }
 
 function setup_chatview_for_operator($thread, $operator)
 {
-	global $page, $webimroot, $company_logo_link, $webim_encoding, $company_name, $settings;
-	loadsettings();
+	global $page, $webimroot, $company_logo_link, $webim_encoding, $company_name;
 	$page = array();
 	if (! is_null($thread['groupid'])) {
 		$group = group_by_id($thread['groupid']);
@@ -470,11 +466,11 @@ function setup_chatview_for_operator($thread, $operator)
 	$page['ct.chatThreadId'] = $thread['threadid'];
 	$page['ct.token'] = $thread['ltoken'];
 	$page['ct.user.name'] = htmlspecialchars(topage(get_user_name($thread['userName'], $thread['remote'], $thread['userid'])));
-	$page['chat.title'] = topage(empty($group['vcchattitle'])?$settings['chattitle']:$group['vcchattitle']);
+	$page['chat.title'] = topage(empty($group['vcchattitle'])?Settings::get('chattitle'):$group['vcchattitle']);
 	$page['chat.close.confirmation'] = getlocal('chat.close.confirmation');
 
 	setup_logo($group);
-	if ($settings['sendmessagekey'] == 'enter') {
+	if (Settings::get('sendmessagekey') == 'enter') {
 		$page['send_shortcut'] = "Enter";
 		$page['ignorectrl'] = 1;
 	} else {
@@ -482,14 +478,14 @@ function setup_chatview_for_operator($thread, $operator)
 		$page['ignorectrl'] = 0;
 	}
 
-	if ($settings['enablessl'] == "1" && !is_secure_request()) {
+	if (Settings::get('enablessl') == "1" && !is_secure_request()) {
 		$page['sslLink'] = get_app_location(true, true) . "/operator/agent.php?thread=" . $thread['threadid'] . "&amp;token=" . $thread['ltoken'];
 	}
 	$page['isOpera95'] = is_agent_opera95();
 	$page['neediframesrc'] = needsFramesrc();
 	$page['historyParams'] = array("userid" => "" . $thread['userid']);
 	$page['historyParamsLink'] = add_params($webimroot . "/operator/userhistory.php", $page['historyParams']);
-	if ($settings['enabletracking']) {
+	if (Settings::get('enabletracking')) {
 	    $visitor = track_get_visitor_by_threadid($thread['threadid']);
 	    $page['trackedParams'] = array("visitor" => "" . $visitor['visitorid']);
 	    $page['trackedParamsLink'] = add_params($webimroot . "/operator/tracked.php", $page['trackedParams']);
@@ -512,7 +508,7 @@ function setup_chatview_for_operator($thread, $operator)
 	$page['redirectLink'] = "$webimroot/operator/agent.php?" . $params . "&amp;act=redirect";
 
 	$page['namePostfix'] = "";
-	$page['frequency'] = $settings['updatefrequency_chat'];
+	$page['frequency'] = Settings::get('updatefrequency_chat');
 }
 
 function update_thread_access($threadid, $params)
@@ -619,8 +615,8 @@ function close_thread($thread, $isuser)
 
 function close_old_threads()
 {
-	global $state_closed, $state_left, $state_chatting, $settings;
-	if ($settings['thread_lifetime'] == 0) {
+	global $state_closed, $state_left, $state_chatting;
+	if (Settings::get('thread_lifetime') == 0) {
 		return;
 	}
 
@@ -641,7 +637,7 @@ function close_old_threads()
 			':next_revision' => next_revision(),
 			':state_closed' => $state_closed,
 			':state_left' => $state_left,
-			':thread_lifetime' => $settings['thread_lifetime']
+			':thread_lifetime' => Settings::get('thread_lifetime')
 		)
 	);
 }
@@ -721,14 +717,14 @@ function do_take_thread($threadid, $operatorId, $operatorName, $chatstart = fals
 
 function reopen_thread($threadid)
 {
-	global $state_queue, $state_loading, $state_waiting, $state_chatting, $state_closed, $state_left, $kind_events, $settings;
+	global $state_queue, $state_loading, $state_waiting, $state_chatting, $state_closed, $state_left, $kind_events;
 
 	$thread = thread_by_id($threadid);
 
 	if (!$thread)
 		return FALSE;
 
-	if ($settings['thread_lifetime'] != 0 && abs($thread['lpuser'] - time()) > $settings['thread_lifetime'] && abs($thread['lpagent'] - time()) > $settings['thread_lifetime']) {
+	if (Settings::get('thread_lifetime') != 0 && abs($thread['lpuser'] - time()) > Settings::get('thread_lifetime') && abs($thread['lpagent'] - time()) > Settings::get('thread_lifetime')) {
 		return FALSE;
 	}
 
@@ -806,8 +802,8 @@ function check_for_reassign($thread, $operator)
 
 function check_connections_from_remote($remote)
 {
-	global $settings, $state_closed, $state_left;
-	if ($settings['max_connections_from_one_host'] == 0) {
+	global $state_closed, $state_left;
+	if (Settings::get('max_connections_from_one_host') == 0) {
 		return true;
 	}
 
@@ -820,7 +816,7 @@ function check_connections_from_remote($remote)
 	);
 
 	if ($result && isset($result['opened'])) {
-		return $result['opened'] < $settings['max_connections_from_one_host'];
+		return $result['opened'] < Settings::get('max_connections_from_one_host');
 	}
 	return true;
 }
diff --git a/src/messenger/webim/libs/classes/settings.php b/src/messenger/webim/libs/classes/settings.php
index 981cf410..ce11bdcf 100644
--- a/src/messenger/webim/libs/classes/settings.php
+++ b/src/messenger/webim/libs/classes/settings.php
@@ -64,6 +64,7 @@ Class Settings {
 			'logo' => '',
 			'usernamepattern' => '{name}',
 			'chatstyle' => 'default',
+			'invitationstyle' => 'default',
 			'chattitle' => 'Live Support',
 			'geolink' => 'http://api.hostip.info/get_html.php?ip={ip}',
 			'geolinkparams' => 'width=440,height=100,toolbar=0,scrollbars=0,location=0,status=1,menubar=0,resizable=1',
diff --git a/src/messenger/webim/libs/common.php b/src/messenger/webim/libs/common.php
index ed262826..9608ef45 100644
--- a/src/messenger/webim/libs/common.php
+++ b/src/messenger/webim/libs/common.php
@@ -20,6 +20,7 @@ session_start();
 require_once(dirname(__FILE__) . '/converter.php');
 require_once(dirname(__FILE__) . '/config.php');
 require_once(dirname(__FILE__) . '/classes/database.php');
+require_once(dirname(__FILE__) . '/classes/settings.php');
 
 $version = '1.6.5';
 $jsver = "165";
@@ -563,85 +564,13 @@ function date_to_text($unixtime)
 $dbversion = '1.6.3';
 $featuresversion = '1.6.4';
 
-$settings = array(
-	'dbversion' => 0,
-	'featuresversion' => 0,
-	'title' => 'Your Company',
-	'hosturl' => 'http://mibew.org',
-	'logo' => '',
-	'usernamepattern' => '{name}',
-	'chatstyle' => 'default',
-	'chattitle' => 'Live Support',
-	'geolink' => 'http://api.hostip.info/get_html.php?ip={ip}',
-	'geolinkparams' => 'width=440,height=100,toolbar=0,scrollbars=0,location=0,status=1,menubar=0,resizable=1',
-	'max_uploaded_file_size' => 100000,
-	'max_connections_from_one_host' => 10,
-	'thread_lifetime' => 600,
-
-	'email' => '', /* inbox for left messages */
-	'left_messages_locale' => $home_locale,
-	'sendmessagekey' => 'center',
-
-	'enableban' => '0',
-	'enablessl' => '0',
-	'forcessl' => '0',
-	'usercanchangename' => '1',
-	'enablegroups' => '0',
-	'enablegroupsisolation' => '0',
-	'enablestatistics' => '1',
-	'enabletracking' => '0',
-	'enablepresurvey' => '1',
-	'surveyaskmail' => '0',
-	'surveyaskgroup' => '1',
-	'surveyaskmessage' => '0',
-	'enablepopupnotification' => '0',
-	'showonlineoperators' => '0',
-	'enablecaptcha' => '0',
-
-	'online_timeout' => 30, /* Timeout (in seconds) when online operator becomes offline */
-	'updatefrequency_operator' => 2,
-	'updatefrequency_chat' => 2,
-	'updatefrequency_oldchat' => 7,
-
-	'updatefrequency_tracking' => 10,
-	'visitors_limit' => 20, /* Number of visitors to look over */
-	'invitation_lifetime' => 60, /* Lifetime for invitation to chat */
-	'tracking_lifetime' => 600, /* Time to store tracked old visitors' data */
-
-);
-$settingsloaded = false;
-$settings_in_db = array();
-
-function loadsettings()
-{
-	global $settingsloaded, $settings_in_db, $settings;
-	if ($settingsloaded) {
-		return;
-	}
-	$settingsloaded = true;
-
-	$db = Database::getInstance();
-	$rows = $db->query(
-		"select vckey,vcvalue from {chatconfig}",
-		NULL,
-		array('return_rows' => Database::RETURN_ALL_ROWS)
-	);
-	foreach ($rows as $row) {
-		$name = $row['vckey'];
-		$settings[$name] = $row['vcvalue'];
-		$settings_in_db[$name] = true;
-	}
-}
-
 function getchatstyle()
 {
-	global $settings;
 	$chatstyle = verifyparam("style", "/^\w+$/", "");
 	if ($chatstyle) {
 		return $chatstyle;
 	}
-	loadsettings();
-	return $settings['chatstyle'];
+	return Settings::get('chatstyle');
 }
 
 function jspath()
diff --git a/src/messenger/webim/libs/demothread.php b/src/messenger/webim/libs/demothread.php
index 81ba0b9f..fee689d1 100644
--- a/src/messenger/webim/libs/demothread.php
+++ b/src/messenger/webim/libs/demothread.php
@@ -27,8 +27,7 @@ function demo_print_message($msg, $format)
 
 function demo_process_thread($act, $outformat, $lastid, $isuser, $canpost, $istyping, $postmessage)
 {
-	global $kind_for_agent, $kind_info, $kind_events, $kind_user, $kind_agent, $webimroot, $settings;
-	loadsettings();
+	global $kind_for_agent, $kind_info, $kind_events, $kind_user, $kind_agent, $webimroot;
 	if ($act == "refresh" || $act == "post") {
 		$lastid++;
 		if ($outformat == "xml") {
@@ -42,7 +41,7 @@ function demo_process_thread($act, $outformat, $lastid, $isuser, $canpost, $isty
 					"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">" .
 					"<html>\n<head>\n" .
 					"<link href=\"$webimroot/styles/default/chat.css\" rel=\"stylesheet\" type=\"text/css\">\n" .
-					"<meta http-equiv=\"Refresh\" content=\"" . $settings['updatefrequency_oldchat'] . "; URL=$url&amp;sn=11\">\n" .
+					"<meta http-equiv=\"Refresh\" content=\"" . Settings::get('updatefrequency_oldchat') . "; URL=$url&amp;sn=11\">\n" .
 					"<meta http-equiv=\"Pragma\" content=\"no-cache\">\n" .
 					"<title>chat</title>\n" .
 					"</head>\n" .
diff --git a/src/messenger/webim/libs/getcode.php b/src/messenger/webim/libs/getcode.php
index 1f5305f6..f72a3b21 100644
--- a/src/messenger/webim/libs/getcode.php
+++ b/src/messenger/webim/libs/getcode.php
@@ -17,7 +17,6 @@
 
 function generate_button($title, $locale, $style, $invitationstyle, $group, $inner, $showhost, $forcesecure, $modsecurity)
 {
-	global $settings;
 	$link = get_app_location($showhost, $forcesecure) . "/client.php";
 	if ($locale)
 		$link = append_query($link, "locale=$locale");
@@ -30,14 +29,14 @@ function generate_button($title, $locale, $style, $invitationstyle, $group, $inn
 	$jslink = append_query("'" . $link, "url='+escape(document.location.href$modsecfix)+'&amp;referrer='+escape(document.referrer$modsecfix)");
 	$temp = get_popup($link, "$jslink",
 					  $inner, $title, "webim", "toolbar=0,scrollbars=0,location=0,status=1,menubar=0,width=640,height=480,resizable=1");
-	if ($settings['enabletracking']) {
+	if (Settings::get('enabletracking')) {
 	    $temp = preg_replace('/^(<a )/', '\1id="mibewAgentButton" ', $temp);
 	    $temp .= '<div id="mibewinvitation"></div><script type="text/javascript">var mibewInviteStyle = \'@import url(';
 	    $temp .= get_app_location($showhost, $forcesecure);
 	    $temp .= '/styles/invitations/';
-	    $temp .= ($invitationstyle?$invitationstyle:(array_key_exists('invitationstyle', $settings)?$settings['invitationstyle']:'default'));
+	    $temp .= ($invitationstyle?$invitationstyle:(Settings::get('invitationstyle')));
 	    $temp .= '/invite.css);\'; var mibewRequestTimeout = ';
-	    $temp .= $settings['updatefrequency_tracking'];
+	    $temp .= Settings::get('updatefrequency_tracking');
 	    $temp .= '*1000; var mibewRequestUrl = \'';
 	    $temp .= get_app_location($showhost, $forcesecure);
 	    $temp .= '/request.php?entry=\' + escape(document.referrer) + \'&lang=ru\'</script><script type="text/javascript" src="';
diff --git a/src/messenger/webim/libs/groups.php b/src/messenger/webim/libs/groups.php
index e4d77a17..223928ec 100644
--- a/src/messenger/webim/libs/groups.php
+++ b/src/messenger/webim/libs/groups.php
@@ -37,7 +37,7 @@ function get_group_name($group)
 
 function setup_group_settings_tabs($gid, $active)
 {
-	global $page, $webimroot, $settings;
+	global $page, $webimroot;
 	if ($gid) {
 		$page['tabs'] = array(
 			getlocal("page_group.tab.main") => $active != 0 ? "$webimroot/operator/group.php?gid=$gid" : "",
@@ -50,9 +50,8 @@ function setup_group_settings_tabs($gid, $active)
 
 function get_operator_groupslist($operatorid)
 {
-	global $settings;
 	$db = Database::getInstance();
-	if ($settings['enablegroups'] == '1') {
+	if (Settings::get('enablegroups') == '1') {
 		$groupids = array(0);
 		$allgroups = $db->query(
 			"select groupid from {chatgroupoperator} where operatorid = ? order by groupid",
diff --git a/src/messenger/webim/libs/operator.php b/src/messenger/webim/libs/operator.php
index fcbe184f..afd0948e 100644
--- a/src/messenger/webim/libs/operator.php
+++ b/src/messenger/webim/libs/operator.php
@@ -162,20 +162,17 @@ function get_operators_from_adjacent_groups($operator)
 
 function operator_is_online($operator)
 {
-	global $settings;
-	return $operator['time'] < $settings['online_timeout'];
+	return $operator['time'] < Settings::get('online_timeout');
 }
 
 function operator_is_available($operator)
 {
-	global $settings;
-	return $operator['istatus'] == 0 && $operator['time'] < $settings['online_timeout'] ? "1" : "";
+	return $operator['istatus'] == 0 && $operator['time'] < Settings::get('online_timeout') ? "1" : "";
 }
 
 function operator_is_away($operator)
 {
-	global $settings;
-	return $operator['istatus'] != 0 && $operator['time'] < $settings['online_timeout'] ? "1" : "";
+	return $operator['istatus'] != 0 && $operator['time'] < Settings::get('online_timeout') ? "1" : "";
 }
 
 function operator_is_disabled($operator)
@@ -255,8 +252,6 @@ function notify_operator_alive($operatorid, $istatus)
 
 function has_online_operators($groupid = "")
 {
-	global $settings;
-	loadsettings();
 	$db = Database::getInstance();
 
 	$query = "select count(*) as total, min(unix_timestamp(CURRENT_TIMESTAMP)-unix_timestamp(dtmlastvisited)) as time from {chatoperator}";
@@ -265,7 +260,7 @@ function has_online_operators($groupid = "")
 			"({chatgroup}.groupid = :groupid or {chatgroup}.parent = :groupid) and {chatoperator}.operatorid = " .
 			"{chatgroupoperator}.operatorid and istatus = 0";
 	} else {
-		if ($settings['enablegroups'] == 1) {
+		if (Settings::get('enablegroups') == 1) {
 			$query .= ", {chatgroupoperator} where {chatoperator}.operatorid = " .
 				"{chatgroupoperator}.operatorid and istatus = 0";
 		} else {
@@ -278,14 +273,11 @@ function has_online_operators($groupid = "")
 		array(':groupid'=>$groupid),
 		array('return_rows' => Database::RETURN_ONE_ROW)
 	);
-	return $row['time'] < $settings['online_timeout'] && $row['total'] > 0;
+	return $row['time'] < Settings::get('online_timeout') && $row['total'] > 0;
 }
 
 function is_operator_online($operatorid)
 {
-	global $settings;
-	loadsettings();
-	
 	$db = Database::getInstance();
 	$row = $db->query(
 		"select count(*) as total, " .
@@ -295,7 +287,7 @@ function is_operator_online($operatorid)
 		array('return_rows' => Database::RETURN_ONE_ROW)
 	);
 	
-	return $row['time'] < $settings['online_timeout'] && $row['total'] == 1;
+	return $row['time'] < Settings::get('online_timeout') && $row['total'] == 1;
 }
 
 function get_operator_name($operator)
@@ -384,8 +376,7 @@ function logout_operator()
 
 function setup_redirect_links($threadid, $operator, $token)
 {
-	global $page, $webimroot, $settings;
-	loadsettings();
+	global $page, $webimroot;
 
 	$operator_in_isolation = in_isolation($operator);
 
@@ -395,7 +386,7 @@ function setup_redirect_links($threadid, $operator, $token)
 
 	$groupscount = 0;
 	$groups = array();
-	if ($settings['enablegroups'] == "1") {
+	if (Settings::get('enablegroups') == "1") {
 		$groupslist = $operator_in_isolation?get_groups_for_operator($operator, true):get_groups(true);
 		foreach ($groupslist as $group) {
 			if ($group['inumofagents'] == 0) {
@@ -417,7 +408,7 @@ function setup_redirect_links($threadid, $operator, $token)
 	$params = array('thread' => $threadid, 'token' => $token);
 	foreach ($operators as $agent) {
 		$params['nextAgent'] = $agent['operatorid'];
-		$status = $agent['time'] < $settings['online_timeout']
+		$status = $agent['time'] < Settings::get('online_timeout')
 				? ($agent['istatus'] == 0
 						? getlocal("char.redirect.operator.online_suff")
 						: getlocal("char.redirect.operator.away_suff")
@@ -431,13 +422,13 @@ function setup_redirect_links($threadid, $operator, $token)
 	$page['redirectToAgent'] = $agent_list;
 
 	$group_list = "";
-	if ($settings['enablegroups'] == "1") {
+	if (Settings::get('enablegroups') == "1") {
 		$params = array('thread' => $threadid, 'token' => $token);
 		foreach ($groups as $group) {
 			$params['nextGroup'] = $group['groupid'];
-			$status = $group['ilastseen'] !== NULL && $group['ilastseen'] < $settings['online_timeout']
+			$status = $group['ilastseen'] !== NULL && $group['ilastseen'] < Settings::get('online_timeout')
 					? getlocal("char.redirect.operator.online_suff")
-					: ($group['ilastseenaway'] !== NULL && $group['ilastseenaway'] < $settings['online_timeout']
+					: ($group['ilastseenaway'] !== NULL && $group['ilastseenaway'] < Settings::get('online_timeout')
 							? getlocal("char.redirect.operator.away_suff")
 							: "");
 			$group_list .= "<li><a href=\"" . add_params($webimroot . "/operator/redirect.php", $params) .
@@ -473,19 +464,17 @@ function is_capable($perm, $operator)
 
 function in_isolation($operator)
 {
-	global $settings, $can_administrate;
-	loadsettings();
-	return (!is_capable($can_administrate, $operator) && $settings['enablegroups'] && $settings['enablegroupsisolation']);
+	global $can_administrate;
+	return (!is_capable($can_administrate, $operator) && Settings::get('enablegroups') && Settings::get('enablegroupsisolation'));
 }
 
 function prepare_menu($operator, $hasright = true)
 {
-	global $page, $settings, $can_administrate;
+	global $page, $can_administrate;
 	$page['operator'] = topage(get_operator_name($operator));
 	if ($hasright) {
-		loadsettings();
-		$page['showban'] = $settings['enableban'] == "1";
-		$page['showstat'] = $settings['enablestatistics'] == "1";
+		$page['showban'] = Settings::get('enableban') == "1";
+		$page['showstat'] = Settings::get('enablestatistics') == "1";
 		$page['showadmin'] = is_capable($can_administrate, $operator);
 		$page['currentopid'] = $operator['operatorid'];
 	}
diff --git a/src/messenger/webim/libs/operator_settings.php b/src/messenger/webim/libs/operator_settings.php
index 60fcf2f6..28918c42 100644
--- a/src/messenger/webim/libs/operator_settings.php
+++ b/src/messenger/webim/libs/operator_settings.php
@@ -17,8 +17,7 @@
 
 function setup_operator_settings_tabs($opId, $active)
 {
-	global $page, $webimroot, $settings;
-	loadsettings();
+	global $page, $webimroot;
 
 	if ($opId) {
 		$page['tabs'] = array(
diff --git a/src/messenger/webim/libs/settings.php b/src/messenger/webim/libs/settings.php
index 7be27ca6..8e12a5c6 100644
--- a/src/messenger/webim/libs/settings.php
+++ b/src/messenger/webim/libs/settings.php
@@ -15,28 +15,16 @@
  * limitations under the License.
  */
 
-function update_settings()
-{
-	global $settings, $settings_in_db;
-	$db = Database::getInstance();
-	foreach ($settings as $key => $value) {
-		if (!isset($settings_in_db[$key])) {
-			$db->query("insert into {chatconfig} (vckey) values (?)", array($key));
-		}
-		$db->query("update {chatconfig} set vcvalue=? where vckey=?", array($value, $key));
-	}
-}
-
 function setup_settings_tabs($active)
 {
-	global $settings, $page, $webimroot;
+	global $page, $webimroot;
 	$page['tabs'] = array(
 		getlocal("page_settings.tab.main") => $active != 0 ? "$webimroot/operator/settings.php" : "",
 		getlocal("page_settings.tab.features") => $active != 1 ? "$webimroot/operator/features.php" : "",
 		getlocal("page_settings.tab.performance") => $active != 2 ? "$webimroot/operator/performance.php" : "",
 		getlocal("page_settings.tab.themes") => $active != 3 ? "$webimroot/operator/themes.php" : "",
 	);
-	if ($settings['enabletracking']) {
+	if (Settings::get('enabletracking')) {
 		$page['tabs'][getlocal("page_settings.tab.invitationthemes")] = ($active != 4 ? "$webimroot/operator/invitationthemes.php" : "");
 	}
 }
diff --git a/src/messenger/webim/libs/statistics.php b/src/messenger/webim/libs/statistics.php
index ae72be98..8520378b 100644
--- a/src/messenger/webim/libs/statistics.php
+++ b/src/messenger/webim/libs/statistics.php
@@ -29,12 +29,12 @@ function get_statistics_query($type)
 
 function setup_statistics_tabs($active)
 {
-	global $settings, $page, $webimroot;
+	global $page, $webimroot;
 	$page['tabs'] = array(
 		getlocal("report.bydate.title") => $active != 0 ? "$webimroot/operator/statistics.php".get_statistics_query('bydate') : "",
 		getlocal("report.byoperator.title") => $active != 1 ? "$webimroot/operator/statistics.php".get_statistics_query('byagent') : ""
 	);
-	if ($settings['enabletracking']) {
+	if (Settings::get('enabletracking')) {
 		$page['tabs'][getlocal("report.bypage.title")] = ($active != 2 ? "$webimroot/operator/statistics.php".get_statistics_query('bypage') : "");
 	}
 }
diff --git a/src/messenger/webim/libs/userinfo.php b/src/messenger/webim/libs/userinfo.php
index 856edb0e..e0f8b7cb 100644
--- a/src/messenger/webim/libs/userinfo.php
+++ b/src/messenger/webim/libs/userinfo.php
@@ -47,10 +47,16 @@ function get_useragent_version($userAgent)
 
 function get_user_addr($addr)
 {
-	global $settings;
-	if ($settings['geolink'] && preg_match("/(\\d+\\.\\d+\\.\\d+\\.\\d+)/", $addr, $matches)) {
+	if (Settings::get('geolink') && preg_match("/(\\d+\\.\\d+\\.\\d+\\.\\d+)/", $addr, $matches)) {
 		$userip = $matches[1];
-		return get_popup(str_replace("{ip}", $userip, $settings['geolink']), '', htmlspecialchars($addr), "GeoLocation", "ip$userip", $settings['geolinkparams']);
+		return get_popup(
+			str_replace("{ip}", $userip, Settings::get('geolink')),
+			'',
+			htmlspecialchars($addr),
+			"GeoLocation",
+			"ip$userip",
+			Settings::get('geolinkparams')
+		);
 	}
 	return htmlspecialchars($addr);
 }
diff --git a/src/messenger/webim/mail.php b/src/messenger/webim/mail.php
index ac2a6f7b..4cf575fc 100644
--- a/src/messenger/webim/mail.php
+++ b/src/messenger/webim/mail.php
@@ -58,10 +58,8 @@ foreach( $output as $msg ) {
 	$history .= $msg;
 }
 
-loadsettings();
-
 $subject = getstring("mail.user.history.subject");
-$body = getstring2("mail.user.history.body", array($thread['userName'],$history,$settings['title'],$settings['hosturl']) );
+$body = getstring2("mail.user.history.body", array($thread['userName'],$history,Settings::get('title'),Settings::get('hosturl')) );
 
 webim_mail($email, $webim_mailbox, $subject, $body);
 
diff --git a/src/messenger/webim/operator/agent.php b/src/messenger/webim/operator/agent.php
index d78d51ec..d4c7e3fd 100644
--- a/src/messenger/webim/operator/agent.php
+++ b/src/messenger/webim/operator/agent.php
@@ -25,8 +25,7 @@ require_once('../libs/expand.php');
 
 $operator = check_login();
 
-loadsettings();
-if ($settings['enablessl'] == "1" && $settings['forcessl'] == "1") {
+if (Settings::get('enablessl') == "1" && Settings::get('forcessl') == "1") {
 	if (!is_secure_request()) {
 		$requested = $_SERVER['PHP_SELF'];
 		if ($_SERVER['REQUEST_METHOD'] == 'GET' && $_SERVER['QUERY_STRING']) {
diff --git a/src/messenger/webim/operator/avatar.php b/src/messenger/webim/operator/avatar.php
index d8fd9ab3..e16e5f30 100644
--- a/src/messenger/webim/operator/avatar.php
+++ b/src/messenger/webim/operator/avatar.php
@@ -48,10 +48,9 @@ if (!$op) {
 
 		$ext = strtolower(substr($orig_filename, 1 + strrpos($orig_filename, ".")));
 		$new_file_name = "$opId.$ext";
-		loadsettings();
 
 		$file_size = $_FILES['avatarFile']['size'];
-		if ($file_size == 0 || $file_size > $settings['max_uploaded_file_size']) {
+		if ($file_size == 0 || $file_size > Settings::get('max_uploaded_file_size')) {
 			$errors[] = failed_uploading_file($orig_filename, "errors.file.size.exceeded");
 		} elseif (!in_array($ext, $valid_types)) {
 			$errors[] = failed_uploading_file($orig_filename, "errors.invalid.file.type");
diff --git a/src/messenger/webim/operator/canned.php b/src/messenger/webim/operator/canned.php
index 11fe3332..40b9a345 100644
--- a/src/messenger/webim/operator/canned.php
+++ b/src/messenger/webim/operator/canned.php
@@ -26,8 +26,6 @@ $operator = check_login();
 force_password($operator);
 csrfchecktoken();
 
-loadsettings();
-
 $errors = array();
 $page = array();
 
diff --git a/src/messenger/webim/operator/cannededit.php b/src/messenger/webim/operator/cannededit.php
index 9196f1b4..91e7aa3b 100644
--- a/src/messenger/webim/operator/cannededit.php
+++ b/src/messenger/webim/operator/cannededit.php
@@ -22,7 +22,6 @@ require_once('../libs/pagination.php');
 
 $operator = check_login();
 csrfchecktoken();
-loadsettings();
 
 $stringid = verifyparam("key", "/^\d{0,9}$/", "");
 
diff --git a/src/messenger/webim/operator/features.php b/src/messenger/webim/operator/features.php
index 3121cecf..0fddbcf2 100644
--- a/src/messenger/webim/operator/features.php
+++ b/src/messenger/webim/operator/features.php
@@ -34,22 +34,21 @@ $options = array(
 	'enablepopupnotification', 'showonlineoperators',
 	'enablecaptcha');
 
-loadsettings();
-if ($settings['featuresversion'] != $featuresversion) {
-	$settings['featuresversion'] = $featuresversion;
-	update_settings();
+if (Settings::get('featuresversion') != $featuresversion) {
+	Settings::set('featuresversion',$featuresversion);
+	Settings::update();
 }
 $params = array();
 foreach ($options as $opt) {
-	$params[$opt] = $settings[$opt];
+	$params[$opt] = Settings::get($opt);
 }
 
 if (isset($_POST['sent'])) {
 	if (is_capable($can_administrate, $operator)) {
 		foreach ($options as $opt) {
-			$settings[$opt] = verifyparam($opt, "/^on$/", "") == "on" ? "1" : "0";
+			Settings::set($opt,(verifyparam($opt, "/^on$/", "") == "on" ? "1" : "0"));
 		}
-		update_settings();
+		Settings::update();
 		header("Location: $webimroot/operator/features.php?stored");
 		exit;
 	} else {
diff --git a/src/messenger/webim/operator/getcode.php b/src/messenger/webim/operator/getcode.php
index 7f35272a..09128e56 100644
--- a/src/messenger/webim/operator/getcode.php
+++ b/src/messenger/webim/operator/getcode.php
@@ -24,8 +24,6 @@ require_once('../libs/styles.php');
 $operator = check_login();
 force_password($operator);
 
-loadsettings();
-
 $imageLocales = get_image_locales_map("../locales");
 $image = verifyparam(isset($_GET['image']) ? "image" : "i", "/^\w+$/", "webim");
 if (!isset($imageLocales[$image])) {
@@ -84,7 +82,7 @@ $page['formhostname'] = $showhost;
 $page['formsecure'] = $forcesecure;
 $page['formmodsecurity'] = $modsecurity;
 
-$page['enabletracking'] = $settings['enabletracking'];
+$page['enabletracking'] = Settings::get('enabletracking');
 
 prepare_menu($operator);
 start_html_output();
diff --git a/src/messenger/webim/operator/groups.php b/src/messenger/webim/operator/groups.php
index 2949c0d4..ba778e83 100644
--- a/src/messenger/webim/operator/groups.php
+++ b/src/messenger/webim/operator/groups.php
@@ -44,14 +44,12 @@ if (isset($_GET['act']) && $_GET['act'] == 'del') {
 
 function is_online($group)
 {
-	global $settings;
-	return $group['ilastseen'] !== NULL && $group['ilastseen'] < $settings['online_timeout'] ? "1" : "";
+	return $group['ilastseen'] !== NULL && $group['ilastseen'] < Settings::get('online_timeout') ? "1" : "";
 }
 
 function is_away($group)
 {
-	global $settings;
-	return $group['ilastseenaway'] !== NULL && $group['ilastseenaway'] < $settings['online_timeout'] ? "1" : "";
+	return $group['ilastseenaway'] !== NULL && $group['ilastseenaway'] < Settings::get('online_timeout') ? "1" : "";
 }
 
 
diff --git a/src/messenger/webim/operator/history.php b/src/messenger/webim/operator/history.php
index b2619000..f5652689 100644
--- a/src/messenger/webim/operator/history.php
+++ b/src/messenger/webim/operator/history.php
@@ -24,8 +24,6 @@ require_once('../libs/pagination.php');
 $operator = check_login();
 force_password($operator);
 
-loadsettings();
-
 setlocale(LC_TIME, getstring("time.locale"));
 
 $page = array();
diff --git a/src/messenger/webim/operator/index.php b/src/messenger/webim/operator/index.php
index b156eb68..f8a5a33e 100644
--- a/src/messenger/webim/operator/index.php
+++ b/src/messenger/webim/operator/index.php
@@ -21,17 +21,16 @@ require_once('../libs/operator.php');
 $operator = check_login();
 force_password($operator);
 
-loadsettings();
 $isonline = is_operator_online($operator['operatorid']);
 
 $page = array(
 	'version' => $version,
 	'localeLinks' => get_locale_links("$webimroot/operator/index.php"),
-	'needUpdate' => $settings['dbversion'] != $dbversion,
+	'needUpdate' => Settings::get('dbversion') != $dbversion,
 	'needChangePassword' => $operator['vcpassword'] == md5(''),
 	'profilePage' => "$webimroot/operator/operator.php?op=".$operator['operatorid'],
 	'updateWizard' => "$webimroot/install/",
-	'newFeatures' => $settings['featuresversion'] != $featuresversion,
+	'newFeatures' => Settings::get('featuresversion') != $featuresversion,
 	'featuresPage' => "$webimroot/operator/features.php",
 	'isOnline' => $isonline
 );
diff --git a/src/messenger/webim/operator/invitationstate.php b/src/messenger/webim/operator/invitationstate.php
index 81359987..288c72e5 100644
--- a/src/messenger/webim/operator/invitationstate.php
+++ b/src/messenger/webim/operator/invitationstate.php
@@ -21,8 +21,6 @@ require_once('../libs/operator.php');
 
 $operator = check_login();
 
-loadsettings();
-
 $visitorid = verifyparam("visitor", "/^\d{1,8}$/");
 
 $errors = array();
diff --git a/src/messenger/webim/operator/invite.php b/src/messenger/webim/operator/invite.php
index ed975669..c3f8ef65 100644
--- a/src/messenger/webim/operator/invite.php
+++ b/src/messenger/webim/operator/invite.php
@@ -21,8 +21,6 @@ require_once('../libs/operator.php');
 
 $operator = check_login();
 
-loadsettings();
-
 $visitorid = verifyparam("visitor", "/^\d{1,8}$/");
 
 if (!invitation_invite($visitorid, $operator['operatorid'])) {
@@ -31,7 +29,7 @@ if (!invitation_invite($visitorid, $operator['operatorid'])) {
 
 $page = array();
 $page['visitor'] = $visitorid;
-$page['frequency'] = $settings['updatefrequency_operator'];
+$page['frequency'] = Settings::get('updatefrequency_operator');
 
 start_html_output();
 require('../view/invite.php');
diff --git a/src/messenger/webim/operator/performance.php b/src/messenger/webim/operator/performance.php
index 8557a460..6fc37801 100644
--- a/src/messenger/webim/operator/performance.php
+++ b/src/messenger/webim/operator/performance.php
@@ -31,10 +31,9 @@ $options = array(
 	'updatefrequency_tracking', 'visitors_limit', 'invitation_lifetime',
 	'tracking_lifetime', 'thread_lifetime' );
 
-loadsettings();
 $params = array();
 foreach ($options as $opt) {
-	$params[$opt] = $settings[$opt];
+	$params[$opt] = Settings::get($opt);
 }
 
 if (isset($_POST['onlinetimeout'])) {
@@ -68,7 +67,7 @@ if (isset($_POST['onlinetimeout'])) {
 		$errors[] = getlocal("settings.wrong.threadlifetime");
 	}
 
-	if ($settings['enabletracking']) {
+	if (Settings::get('enabletracking')) {
 
 	    $params['updatefrequency_tracking'] = getparam('frequencytracking');
 	    if (!is_numeric($params['updatefrequency_tracking'])) {
@@ -94,9 +93,9 @@ if (isset($_POST['onlinetimeout'])) {
 
 	if (count($errors) == 0) {
 		foreach ($options as $opt) {
-			$settings[$opt] = $params[$opt];
+			Settings::set($opt,$params[$opt]);
 		}
-		update_settings();
+		Settings::update();
 		header("Location: $webimroot/operator/performance.php?stored");
 		exit;
 	}
@@ -110,7 +109,7 @@ $page['formthreadlifetime'] = $params['thread_lifetime'];
 $page['formonehostconnections'] = $params['max_connections_from_one_host'];
 $page['formthreadlifetime'] = $params['thread_lifetime'];
 
-if ($settings['enabletracking']) {
+if (Settings::get('enabletracking')) {
 
 	$page['formfrequencytracking'] = $params['updatefrequency_tracking'];
 	$page['formvisitorslimit'] = $params['visitors_limit'];
@@ -119,7 +118,7 @@ if ($settings['enabletracking']) {
 
 }
 
-$page['enabletracking'] = $settings['enabletracking'];
+$page['enabletracking'] = Settings::get('enabletracking');
 
 $page['stored'] = isset($_GET['stored']);
 
diff --git a/src/messenger/webim/operator/settings.php b/src/messenger/webim/operator/settings.php
index f644c14a..984f5b36 100644
--- a/src/messenger/webim/operator/settings.php
+++ b/src/messenger/webim/operator/settings.php
@@ -33,16 +33,14 @@ $options = array(
 	'email', 'title', 'logo', 'hosturl', 'usernamepattern',
 	'chatstyle', 'chattitle', 'geolink', 'geolinkparams', 'sendmessagekey');
 
-loadsettings();
-
-if ($settings['enabletracking']) {
+if (Settings::get('enabletracking')) {
 	$options[] = 'invitationstyle';
 	$invitationstylelist = get_style_list("../styles/invitations");
 }
 
 $params = array();
 foreach ($options as $opt) {
-	$params[$opt] = $settings[$opt];
+	$params[$opt] = Settings::get($opt);
 }
 
 if (isset($_POST['email']) && isset($_POST['title']) && isset($_POST['logo'])) {
@@ -61,7 +59,7 @@ if (isset($_POST['email']) && isset($_POST['title']) && isset($_POST['logo'])) {
 		$params['chatstyle'] = $stylelist[0];
 	}
 
-	if ($settings['enabletracking']) {
+	if (Settings::get('enabletracking')) {
 		$params['invitationstyle'] = verifyparam("invitationstyle", "/^\w+$/", $params['invitationstyle']);
 		if (!in_array($params['invitationstyle'], $invitationstylelist)) {
 			$params['invitationstyle'] = $invitationstylelist[0];
@@ -82,9 +80,9 @@ if (isset($_POST['email']) && isset($_POST['title']) && isset($_POST['logo'])) {
 
 	if (count($errors) == 0) {
 		foreach ($options as $opt) {
-			$settings[$opt] = $params[$opt];
+			Settings::set($opt,$params[$opt]);
 		}
-		update_settings();
+		Settings::update();
 		header("Location: $webimroot/operator/settings.php?stored");
 		exit;
 	}
@@ -102,9 +100,9 @@ $page['formchattitle'] = topage($params['chattitle']);
 $page['formsendmessagekey'] = $params['sendmessagekey'];
 $page['availableChatStyles'] = $stylelist;
 $page['stored'] = isset($_GET['stored']);
-$page['enabletracking'] = $settings['enabletracking'];
+$page['enabletracking'] = Settings::get('enabletracking');
 
-if ($settings['enabletracking']) {
+if (Settings::get('enabletracking')) {
 	$page['forminvitationstyle'] = $params['invitationstyle'];
 	$page['availableInvitationStyles'] = $invitationstylelist;
 }
diff --git a/src/messenger/webim/operator/themes.php b/src/messenger/webim/operator/themes.php
index 14a0cf7d..4cc546dc 100644
--- a/src/messenger/webim/operator/themes.php
+++ b/src/messenger/webim/operator/themes.php
@@ -48,7 +48,6 @@ if ($show == 'chat' || $show == 'mail' || $show == 'leavemessage' || $show == 'l
 	exit;
 }
 if ($show == 'survey') {
-	loadsettings();
 	setup_survey("Visitor", "", "", "", "http://google.com");
 	setup_logo();
 	expand("../styles/dialogs", "$preview", "$show.tpl");
diff --git a/src/messenger/webim/operator/threadprocessor.php b/src/messenger/webim/operator/threadprocessor.php
index eb8488e4..a33f668d 100644
--- a/src/messenger/webim/operator/threadprocessor.php
+++ b/src/messenger/webim/operator/threadprocessor.php
@@ -24,7 +24,6 @@ $operator = check_login();
 
 $page = array();
 
-loadsettings();
 setlocale(LC_TIME, getstring("time.locale"));
 
 function thread_info($id)
diff --git a/src/messenger/webim/operator/tracked.php b/src/messenger/webim/operator/tracked.php
index ce6104d8..8a6ec019 100644
--- a/src/messenger/webim/operator/tracked.php
+++ b/src/messenger/webim/operator/tracked.php
@@ -22,10 +22,9 @@ require_once('../libs/track.php');
 
 $operator = check_login();
 
-loadsettings();
 setlocale(LC_TIME, getstring("time.locale"));
 
-if ($settings['enabletracking'] == "0") {
+if (Settings::get('enabletracking') == "0") {
     die("Tracking disabled!");
 }
 
diff --git a/src/messenger/webim/operator/update.php b/src/messenger/webim/operator/update.php
index ae4b4aef..e40954cd 100644
--- a/src/messenger/webim/operator/update.php
+++ b/src/messenger/webim/operator/update.php
@@ -49,8 +49,7 @@ $threadstate_key = array(
 function thread_to_xml($thread)
 {
 	global $state_chatting, $threadstate_to_string, $threadstate_key,
-		$webim_encoding, $operator, $settings,
-		$can_viewthreads, $can_takeover;
+		$webim_encoding, $operator, $can_viewthreads, $can_takeover;
 	$state = $threadstate_to_string[$thread['istate']];
 	$result = "<thread id=\"" . $thread['threadid'] . "\" stateid=\"$state\"";
 	if ($state == "closed")
@@ -72,11 +71,11 @@ function thread_to_xml($thread)
 		&& is_capable($can_viewthreads, $operator)) {
 		$result .= " canview=\"true\"";
 	}
-	if ($settings['enableban'] == "1") {
+	if (Settings::get('enableban') == "1") {
 		$result .= " canban=\"true\"";
 	}
 
-	$banForThread = $settings['enableban'] == "1" ? ban_for_addr($thread['remote']) : false;
+	$banForThread = Settings::get('enableban') == "1" ? ban_for_addr($thread['remote']) : false;
 	if ($banForThread) {
 		$result .= " ban=\"blocked\" banid=\"" . $banForThread['banid'] . "\"";
 	}
@@ -116,7 +115,7 @@ function thread_to_xml($thread)
 
 function print_pending_threads($groupids, $since)
 {
-	global $webim_encoding, $settings, $state_closed, $state_left;
+	global $webim_encoding, $state_closed, $state_left;
 	$db = Database::getInstance();
 
 	$revision = $since;
@@ -127,7 +126,7 @@ function print_pending_threads($groupids, $since)
 		($since <= 0
 			? "AND istate <> :state_closed AND istate <> :state_left "
 			: "") .
-		($settings['enablegroups'] == '1'
+		(Settings::get('enablegroups') == '1'
 			? "AND (groupid is NULL" . ($groupids
 				? " OR groupid IN ($groupids) OR groupid IN (SELECT parent FROM {chatgroup} WHERE groupid IN ($groupids)) "
 				: "") .
@@ -161,7 +160,7 @@ function print_pending_threads($groupids, $since)
 
 function print_operators($operator)
 {
-	global $webim_encoding, $settings;
+	global $webim_encoding;
 	echo "<operators>";
 
 	$list_options = in_isolation($operator)?array('isolated_operator_id' => $operator['operatorid']):array();
@@ -220,7 +219,7 @@ function visitor_to_xml($visitor)
 
 function print_visitors()
 {
-	global $webim_encoding, $settings, $state_closed, $state_left;
+	global $webim_encoding, $state_closed, $state_left;
 
 	$db = Database::getInstance();
 
@@ -231,14 +230,14 @@ function print_visitors()
 		"AND (threadid IS NULL OR " .
 		"(SELECT count(*) FROM {chatthread} WHERE threadid = {chatsitevisitor}.threadid " .
 		"AND istate <> {$state_closed} AND istate <> {$state_left}) = 0)",
-		array($settings['tracking_lifetime'])
+		array(Settings::get('tracking_lifetime'))
 	);
 
 // Remove old invitations
 	$db->query(
 		"UPDATE {chatsitevisitor} SET invited = 0, invitationtime = NULL, invitedby = NULL".
 		" WHERE threadid IS NULL AND (UNIX_TIMESTAMP(CURRENT_TIMESTAMP) - UNIX_TIMESTAMP(invitationtime)) > ?",
-		array($settings['invitation_lifetime'])
+		array(Settings::get('invitation_lifetime'))
 	);
 
 // Remove associations of visitors with closed threads
@@ -252,7 +251,7 @@ function print_visitors()
 	$db->query(
 		"DELETE FROM {visitedpage} WHERE (UNIX_TIMESTAMP(CURRENT_TIMESTAMP) - UNIX_TIMESTAMP(visittime)) > ? " .
 		" AND visitorid NOT IN (SELECT visitorid FROM {chatsitevisitor})",
-		array($settings['tracking_lifetime'])
+		array(Settings::get('tracking_lifetime'))
 	);
 
 	$query = "SELECT visitorid, userid, username, unix_timestamp(firsttime), unix_timestamp(lasttime), " .
@@ -260,7 +259,7 @@ function print_visitors()
 			 "FROM {chatsitevisitor} " .
 			 "WHERE threadid IS NULL " .
 			 "ORDER BY invited, lasttime DESC, invitations";
-	$query .= ($settings['visitors_limit'] == '0') ? "" : " LIMIT " . $settings['visitors_limit'];
+	$query .= (Settings::get('visitors_limit') == '0') ? "" : " LIMIT " . Settings::get('visitors_limit');
 	
 	$rows = $db->query($query, NULL, array('return_rows' => Database::RETURN_ALL_ROWS));
 	
@@ -282,7 +281,6 @@ $status = verifyparam("status", "/^\d{1,2}$/", 0);
 $showonline = verifyparam("showonline", "/^1$/", 0);
 $showvisitors = verifyparam("showvisitors", "/^1$/", 0);
 
-loadsettings();
 if (!isset($_SESSION["${mysqlprefix}operatorgroups"])) {
 	$_SESSION["${mysqlprefix}operatorgroups"] = get_operator_groupslist($operator['operatorid']);
 }
diff --git a/src/messenger/webim/operator/userhistory.php b/src/messenger/webim/operator/userhistory.php
index 8b956f18..c25bb2ed 100644
--- a/src/messenger/webim/operator/userhistory.php
+++ b/src/messenger/webim/operator/userhistory.php
@@ -22,7 +22,6 @@ require_once('../libs/userinfo.php');
 require_once('../libs/pagination.php');
 
 $operator = check_login();
-loadsettings();
 
 $page = array();
 
diff --git a/src/messenger/webim/operator/users.php b/src/messenger/webim/operator/users.php
index e1c68ac2..d66e0159 100644
--- a/src/messenger/webim/operator/users.php
+++ b/src/messenger/webim/operator/users.php
@@ -26,16 +26,15 @@ $status = isset($_GET['away']) ? 1 : 0;
 
 notify_operator_alive($operator['operatorid'], $status);
 
-loadsettings();
 $_SESSION["${mysqlprefix}operatorgroups"] = get_operator_groupslist($operator['operatorid']);
 
 $page = array();
 $page['havemenu'] = isset($_GET['nomenu']) ? "0" : "1";
-$page['showpopup'] = $settings['enablepopupnotification'] == '1' ? "1" : "0";
-$page['frequency'] = $settings['updatefrequency_operator'];
+$page['showpopup'] = Settings::get('enablepopupnotification') == '1' ? "1" : "0";
+$page['frequency'] = Settings::get('updatefrequency_operator');
 $page['istatus'] = $status;
-$page['showonline'] = $settings['showonlineoperators'] == '1' ? "1" : "0";
-$page['showvisitors'] = $settings['enabletracking'] == '1' ? "1" : "0";
+$page['showonline'] = Settings::get('showonlineoperators') == '1' ? "1" : "0";
+$page['showvisitors'] = Settings::get('enabletracking') == '1' ? "1" : "0";
 
 prepare_menu($operator);
 start_html_output();
diff --git a/src/messenger/webim/request.php b/src/messenger/webim/request.php
index 08e34036..47ae83e0 100644
--- a/src/messenger/webim/request.php
+++ b/src/messenger/webim/request.php
@@ -21,11 +21,9 @@ require_once('libs/operator.php');
 require_once('libs/track.php');
 require_once('libs/request.php');
 
-loadsettings();
-
 $invited = FALSE;
 $operator = array();
-if ($settings['enabletracking'] == '1') {
+if (Settings::get('enabletracking') == '1') {
 
     $entry = isset($_GET['entry']) ? $_GET['entry'] : "";
     $referer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : "";
diff --git a/src/messenger/webim/thread.php b/src/messenger/webim/thread.php
index 73bb1270..3725b5fa 100644
--- a/src/messenger/webim/thread.php
+++ b/src/messenger/webim/thread.php
@@ -82,8 +82,7 @@ if( $act == "refresh" ) {
 
 } else if( $act == "rename" ) {
 
-	loadsettings();
-	if( $settings['usercanchangename'] != "1" ) {
+	if( Settings::get('usercanchangename') != "1" ) {
 		show_error("server: forbidden to change name");
 	}