tray/src/messenger/webim/libs/chat.php
2011-11-21 18:11:59 +00:00

750 lines
25 KiB
PHP

<?php
/*
* This file is part of Mibew Messenger project.
*
* Copyright (c) 2005-2011 Mibew Messenger Community
* All rights reserved. The contents of this file are subject to the terms of
* the Eclipse Public License v1.0 which accompanies this distribution, and
* is available at http://www.eclipse.org/legal/epl-v10.html
*
* Alternatively, the contents of this file may be used under the terms of
* the GNU General Public License Version 2 or later (the "GPL"), in which case
* the provisions of the GPL are applicable instead of those above. If you wish
* to allow use of your version of this file only under the terms of the GPL, and
* not to allow others to use your version of this file under the terms of the
* EPL, indicate your decision by deleting the provisions above and replace them
* with the notice and other provisions required by the GPL.
*
* Contributors:
* Evgeny Gryaznov - initial API and implementation
* Pavel Petroshenko - history search
*/
require_once(dirname(__FILE__).'/track.php');
$connection_timeout = 30; // sec
$namecookie = "WEBIM_Data";
$usercookie = "WEBIM_UserID";
$state_queue = 0;
$state_waiting = 1;
$state_chatting = 2;
$state_closed = 3;
$state_loading = 4;
$state_left = 5;
$kind_user = 1;
$kind_agent = 2;
$kind_for_agent = 3;
$kind_info = 4;
$kind_conn = 5;
$kind_events = 6;
$kind_avatar = 7;
$kind_to_string = array($kind_user => "user", $kind_agent => "agent", $kind_for_agent => "hidden",
$kind_info => "inf", $kind_conn => "conn", $kind_events => "event", $kind_avatar => "avatar");
function get_user_id()
{
return (time() + microtime()) . rand(0, 99999999);
}
function next_token()
{
return rand(99999, 99999999);
}
function next_revision($link)
{
global $mysqlprefix;
perform_query("update ${mysqlprefix}chatrevision set id=LAST_INSERT_ID(id+1)", $link);
$val = db_insert_id($link);
return $val;
}
function post_message_($threadid, $kind, $message, $link, $from = null, $utime = null, $opid = null)
{
global $mysqlprefix;
$query = sprintf(
"insert into ${mysqlprefix}chatmessage (threadid,ikind,tmessage,tname,agentId,dtmcreated) values (%s, %s,'%s',%s,%s,%s)",
$threadid,
$kind,
db_escape_string($message, $link),
$from ? "'" . db_escape_string($from, $link) . "'" : "null",
$opid ? $opid : "0",
$utime ? "FROM_UNIXTIME($utime)" : "CURRENT_TIMESTAMP");
perform_query($query, $link);
return db_insert_id($link);
}
function post_message($threadid, $kind, $message, $from = null, $agentid = null)
{
$link = connect();
$id = post_message_($threadid, $kind, $message, $link, $from, null, $agentid);
close_connection($link);
return $id;
}
function prepare_html_message($text)
{
$escaped_text = htmlspecialchars($text);
$text_w_links = preg_replace('/(https?|ftp):\/\/\S*/', '<a href="$0" target="_blank">$0</a>', $escaped_text);
$multiline = str_replace("\n", "<br/>", $text_w_links);
return $multiline;
}
function message_to_html($msg)
{
global $kind_to_string, $kind_avatar;
if ($msg['ikind'] == $kind_avatar) return "";
$message = "<span>" . date("H:i:s", $msg['created']) . "</span> ";
$kind = $kind_to_string{$msg['ikind']};
if ($msg['tname'])
$message .= "<span class='n$kind'>" . htmlspecialchars($msg['tname']) . "</span>: ";
$message .= "<span class='m$kind'>" . prepare_html_message($msg['tmessage']) . "</span><br/>";
return $message;
}
function message_to_text($msg)
{
global $kind_user, $kind_agent, $kind_info, $kind_avatar;
if ($msg['ikind'] == $kind_avatar) return "";
$message_time = date("H:i:s ", $msg['created']);
if ($msg['ikind'] == $kind_user || $msg['ikind'] == $kind_agent) {
if ($msg['tname'])
return $message_time . $msg['tname'] . ": " . $msg['tmessage'] . "\n";
else
return $message_time . $msg['tmessage'] . "\n";
} else if ($msg['ikind'] == $kind_info) {
return $message_time . $msg['tmessage'] . "\n";
} else {
return $message_time . "[" . $msg['tmessage'] . "]\n";
}
}
function get_messages($threadid, $meth, $isuser, &$lastid)
{
global $kind_for_agent, $kind_avatar, $webim_encoding, $mysqlprefix;
$link = connect();
$query = sprintf(
"select messageid,ikind,unix_timestamp(dtmcreated) as created,tname,tmessage from ${mysqlprefix}chatmessage " .
"where threadid = %s and messageid > %s %s order by messageid",
$threadid, $lastid, $isuser ? "and ikind <> $kind_for_agent" : "");
$messages = array();
$msgs = select_multi_assoc($query, $link);
foreach ($msgs as $msg) {
$message = "";
if ($meth == 'xml') {
switch ($msg['ikind']) {
case $kind_avatar:
$message = "<avatar>" . myiconv($webim_encoding, "utf-8", escape_with_cdata($msg['tmessage'])) . "</avatar>";
break;
default:
$message = "<message>" . myiconv($webim_encoding, "utf-8", escape_with_cdata(message_to_html($msg))) . "</message>\n";
}
} else {
if ($msg['ikind'] != $kind_avatar) {
$message = (($meth == 'text') ? message_to_text($msg) : topage(message_to_html($msg)));
}
}
$messages[] = $message;
if ($msg['messageid'] > $lastid) {
$lastid = $msg['messageid'];
}
}
close_connection($link);
return $messages;
}
function print_thread_messages($thread, $token, $lastid, $isuser, $format, $agentid = null)
{
global $webim_encoding, $webimroot, $connection_timeout, $settings;
$threadid = $thread['threadid'];
$istyping = abs($thread['current'] - $thread[$isuser ? "lpagent" : "lpuser"]) < $connection_timeout
&& $thread[$isuser ? "agentTyping" : "userTyping"] == "1" ? "1" : "0";
if ($format == "xml") {
$output = get_messages($threadid, "xml", $isuser, $lastid);
start_xml_output();
print("<thread lastid=\"$lastid\" typing=\"" . $istyping . "\" canpost=\"" . (($isuser || $agentid != null && $agentid == $thread['agentId']) ? 1 : 0) . "\">");
foreach ($output as $msg) {
print $msg;
}
print("</thread>");
} else if ($format == "html") {
loadsettings();
$output = get_messages($threadid, "html", $isuser, $lastid);
start_html_output();
$url = "$webimroot/thread.php?act=refresh&amp;thread=$threadid&amp;token=$token&amp;html=on&amp;user=" . ($isuser ? "true" : "false");
print(
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">" .
"<html>\n<head>\n" .
"<link href=\"$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=\"Pragma\" content=\"no-cache\">\n" .
"<title>chat</title>\n" .
"</head>\n" .
"<body bgcolor='#FFFFFF' text='#000000' link='#C28400' vlink='#C28400' alink='#C28400' onload=\"if( location.hash != '#aend' ){location.hash='#aend';}\">" .
"<table width='100%' cellspacing='0' cellpadding='0' border='0'><tr><td valign='top' class='message'>");
foreach ($output as $msg) {
print $msg;
}
print(
"</td></tr></table><a name='aend'></a>" .
"</body></html>");
}
}
function get_user_name($username, $addr, $id)
{
global $settings;
loadsettings();
return str_replace("{addr}", $addr,
str_replace("{id}", $id,
str_replace("{name}", $username, $settings['usernamepattern'])));
}
function is_ajax_browser($browserid, $ver, $useragent)
{
if ($browserid == "opera")
return $ver >= 8.02;
if ($browserid == "safari")
return $ver >= 125;
if ($browserid == "msie")
return $ver >= 5.5 && !strstr($useragent, "powerpc");
if ($browserid == "netscape")
return $ver >= 7.1;
if ($browserid == "mozilla")
return $ver >= 1.4;
if ($browserid == "firefox")
return $ver >= 1.0;
if ($browserid == "chrome")
return true;
return false;
}
function is_old_browser($browserid, $ver)
{
if ($browserid == "opera")
return $ver < 7.0;
if ($browserid == "msie")
return $ver < 5.0;
return false;
}
$knownAgents = array("opera", "msie", "chrome", "safari", "firefox", "netscape", "mozilla");
function get_remote_level($useragent)
{
global $knownAgents;
$useragent = strtolower($useragent);
foreach ($knownAgents as $agent) {
if (strstr($useragent, $agent)) {
if (preg_match("/" . $agent . "[\\s\/]?(\\d+(\\.\\d+)?)/", $useragent, $matches)) {
$ver = $matches[1];
if (is_ajax_browser($agent, $ver, $useragent))
return "ajaxed";
else if (is_old_browser($agent, $ver))
return "old";
return "simple";
}
}
}
return "simple";
}
function is_agent_opera95()
{
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
if (strstr($useragent, "opera")) {
if (preg_match("/opera[\\s\/]?(\\d+(\\.\\d+)?)/", $useragent, $matches)) {
$ver = $matches[1];
if ($ver >= "9.5")
return true;
}
}
return false;
}
function is_mac_opera()
{
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
return strstr($useragent, "opera") && strstr($useragent, "mac");
}
function needsFramesrc()
{
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
return strstr($useragent, "safari/");
}
function setup_logo()
{
global $page, $settings;
loadsettings();
$page['ct.company.name'] = topage($settings['title']);
$page['ct.company.chatLogoURL'] = topage($settings['logo']);
$page['webimHost'] = topage($settings['hosturl']);
}
function setup_leavemessage($name, $email, $message, $groupid, $groupname, $info, $referrer, $canshowcaptcha)
{
global $settings, $page;
$page['formname'] = topage($name);
$page['formemail'] = topage($email);
$page['formmessage'] = $message ? topage($message) : "";
$page['showcaptcha'] = $settings["enablecaptcha"] == "1" && $canshowcaptcha ? "1" : "";
$page['formgroupid'] = $groupid;
$page['formgroupname'] = $groupname;
$page['forminfo'] = topage($info);
$page['referrer'] = urlencode(topage($referrer));
}
function setup_survey($name, $email, $groupid, $info, $referrer)
{
global $settings, $page;
$page['formname'] = topage($name);
$page['formemail'] = topage($email);
$page['formgroupid'] = $groupid;
$page['forminfo'] = topage($info);
$page['referrer'] = urlencode(topage($referrer));
if ($settings['enablegroups'] == '1' && $settings["surveyaskgroup"] == "1") {
$link = connect();
$allgroups = get_groups($link, false);
close_connection($link);
$val = "";
foreach ($allgroups as $k) {
$groupname = $k['vclocalname'];
if ($k['inumofagents'] == 0) {
continue;
}
if ($k['ilastseen'] !== NULL && $k['ilastseen'] < $settings['online_timeout']) {
if (!$groupid) {
$groupid = $k['groupid']; // select first online group
}
} else {
$groupname .= " (offline)";
}
$isselected = $k['groupid'] == $groupid;
$val .= "<option value=\"" . $k['groupid'] . "\"" . ($isselected ? " selected=\"selected\"" : "") . ">$groupname</option>";
}
$page['groups'] = $val;
}
$page['showemail'] = $settings["surveyaskmail"] == "1" ? "1" : "";
$page['showmessage'] = $settings["surveyaskmessage"] == "1" ? "1" : "";
$page['showname'] = $settings['usercanchangename'] == "1" ? "1" : "";
}
function setup_chatview_for_user($thread, $level)
{
global $page, $webimroot, $settings;
loadsettings();
$page = array();
$page['agent'] = false;
$page['user'] = true;
$page['canpost'] = true;
$nameisset = getstring("chat.default.username") != $thread['userName'];
$page['displ1'] = $nameisset ? "none" : "inline";
$page['displ2'] = $nameisset ? "inline" : "none";
$page['level'] = $level;
$page['ct.chatThreadId'] = $thread['threadid'];
$page['ct.token'] = $thread['ltoken'];
$page['ct.user.name'] = htmlspecialchars(topage($thread['userName']));
$page['canChangeName'] = $settings['usercanchangename'] == "1";
$page['chat.title'] = topage($settings['chattitle']);
setup_logo();
if ($settings['sendmessagekey'] == 'enter') {
$page['send_shortcut'] = "Enter";
$page['ignorectrl'] = 1;
} else {
$page['send_shortcut'] = is_mac_opera() ? "&#8984;-Enter" : "Ctrl-Enter";
$page['ignorectrl'] = 0;
}
$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()) {
$page['sslLink'] = get_app_location(true, true) . "/client.php?" . $params . "&amp;level=$level";
}
$page['isOpera95'] = is_agent_opera95();
$page['neediframesrc'] = needsFramesrc();
$page['frequency'] = $settings['updatefrequency_chat'];
}
function load_canned_messages($locale, $groupid)
{
global $mysqlprefix;
$link = connect();
$result = select_multi_assoc(
"select vcvalue from ${mysqlprefix}chatresponses where locale = '$locale' " .
"AND (groupid is NULL OR groupid = 0) order by vcvalue", $link);
if (count($result) == 0) {
foreach (explode("\n", getstring_('chat.predefined_answers', $locale)) as $answer) {
$result[] = array('vcvalue' => $answer);
}
}
if ($groupid) {
$result2 = select_multi_assoc(
"select vcvalue from ${mysqlprefix}chatresponses where locale = '$locale' " .
"AND groupid = $groupid order by vcvalue", $link);
foreach ($result as $r) {
$result2[] = $r;
}
$result = $result2;
}
close_connection($link);
return $result;
}
function setup_chatview_for_operator($thread, $operator)
{
global $page, $webimroot, $company_logo_link, $company_name, $settings;
loadsettings();
$page = array();
$page['agent'] = true;
$page['user'] = false;
$page['canpost'] = $thread['agentId'] == $operator['operatorid'];
$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'])));
$page['chat.title'] = topage($settings['chattitle']);
setup_logo();
if ($settings['sendmessagekey'] == 'enter') {
$page['send_shortcut'] = "Enter";
$page['ignorectrl'] = 1;
} else {
$page['send_shortcut'] = is_mac_opera() ? "&#8984;-Enter" : "Ctrl-Enter";
$page['ignorectrl'] = 0;
}
if ($settings['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']) {
$link = connect();
$visitor = track_get_visitor_by_threadid($thread['threadid'], $link);
$page['trackedParams'] = array("visitor" => "" . $visitor['visitorid']);
$page['trackedParamsLink'] = add_params($webimroot . "/operator/tracked.php", $page['trackedParams']);
close_connection($link);
}
$predefinedres = "";
$canned_messages = load_canned_messages($thread['locale'], $thread['groupid']);
foreach ($canned_messages as $answer) {
$predefinedres .= "<option>" . htmlspecialchars(topage($answer['vcvalue'])) . "</option>";
}
$page['predefinedAnswers'] = $predefinedres;
$params = "thread=" . $thread['threadid'] . "&amp;token=" . $thread['ltoken'];
$page['redirectLink'] = "$webimroot/operator/agent.php?" . $params . "&amp;act=redirect";
$page['namePostfix'] = "";
$page['frequency'] = $settings['updatefrequency_chat'];
}
function update_thread_access($threadid, $params, $link)
{
global $mysqlprefix;
$clause = "";
foreach ($params as $k => $v) {
if (strlen($clause) > 0)
$clause .= ", ";
$clause .= $k . "=" . $v;
}
perform_query(
"update ${mysqlprefix}chatthread set $clause " .
"where threadid = $threadid", $link);
}
function ping_thread($thread, $isuser, $istyping)
{
global $kind_for_agent, $state_queue, $state_loading, $state_chatting, $state_waiting, $kind_conn, $connection_timeout;
$link = connect();
$params = array(($isuser ? "lastpinguser" : "lastpingagent") => "CURRENT_TIMESTAMP",
($isuser ? "userTyping" : "agentTyping") => ($istyping ? "1" : "0"));
$lastping = $thread[$isuser ? "lpagent" : "lpuser"];
$current = $thread['current'];
if ($thread['istate'] == $state_loading && $isuser) {
$params['istate'] = $state_queue;
commit_thread($thread['threadid'], $params, $link);
close_connection($link);
return;
}
if ($lastping > 0 && abs($current - $lastping) > $connection_timeout) {
$params[$isuser ? "lastpingagent" : "lastpinguser"] = "0";
if (!$isuser) {
$message_to_post = getstring_("chat.status.user.dead", $thread['locale']);
post_message_($thread['threadid'], $kind_for_agent, $message_to_post, $link, null, $lastping + $connection_timeout);
} else if ($thread['istate'] == $state_chatting) {
$message_to_post = getstring_("chat.status.operator.dead", $thread['locale']);
post_message_($thread['threadid'], $kind_conn, $message_to_post, $link, null, $lastping + $connection_timeout);
$params['istate'] = $state_waiting;
$params['nextagent'] = 0;
commit_thread($thread['threadid'], $params, $link);
close_connection($link);
return;
}
}
update_thread_access($thread['threadid'], $params, $link);
close_connection($link);
}
function commit_thread($threadid, $params, $link)
{
global $mysqlprefix;
$query = "update ${mysqlprefix}chatthread t set lrevision = " . next_revision($link) . ", dtmmodified = CURRENT_TIMESTAMP";
foreach ($params as $k => $v) {
$query .= ", " . $k . "=" . $v;
}
$query .= " where threadid = $threadid";
perform_query($query, $link);
}
function rename_user($thread, $newname)
{
global $kind_events;
$link = connect();
commit_thread($thread['threadid'], array('userName' => "'" . db_escape_string($newname, $link) . "'"), $link);
if ($thread['userName'] != $newname) {
post_message_($thread['threadid'], $kind_events,
getstring2_("chat.status.user.changedname", array($thread['userName'], $newname), $thread['locale']), $link);
}
close_connection($link);
}
function close_thread($thread, $isuser)
{
global $state_closed, $kind_events, $mysqlprefix;
$link = connect();
if ($thread['istate'] != $state_closed) {
commit_thread($thread['threadid'], array('istate' => $state_closed,
'messageCount' => "(SELECT COUNT(*) FROM ${mysqlprefix}chatmessage WHERE ${mysqlprefix}chatmessage.threadid = t.threadid AND ikind = 1)"), $link);
}
$message = $isuser ? getstring2_("chat.status.user.left", array($thread['userName']), $thread['locale'])
: getstring2_("chat.status.operator.left", array($thread['agentName']), $thread['locale']);
post_message_($thread['threadid'], $kind_events, $message, $link);
close_connection($link);
}
function thread_by_id_($id, $link)
{
global $mysqlprefix;
return select_one_row("select threadid,userName,agentName,agentId,lrevision,istate,ltoken,userTyping,agentTyping" .
",unix_timestamp(dtmmodified) as modified, unix_timestamp(dtmcreated) as created" .
",remote,referer,locale,unix_timestamp(lastpinguser) as lpuser,unix_timestamp(lastpingagent) as lpagent, unix_timestamp(CURRENT_TIMESTAMP) as current,nextagent,shownmessageid,userid,userAgent,groupid" .
" from ${mysqlprefix}chatthread where threadid = " . $id, $link);
}
function ban_for_addr_($addr, $link)
{
global $mysqlprefix;
return select_one_row("select banid,comment from ${mysqlprefix}chatban where unix_timestamp(dtmtill) > unix_timestamp(CURRENT_TIMESTAMP) AND address = '" . db_escape_string($addr, $link) . "'", $link);
}
function thread_by_id($id)
{
$link = connect();
$thread = thread_by_id_($id, $link);
close_connection($link);
return $thread;
}
function create_thread($groupid, $username, $remoteHost, $referer, $lang, $userid, $userbrowser, $initialState, $link)
{
global $mysqlprefix;
$query = sprintf(
"insert into ${mysqlprefix}chatthread (userName,userid,ltoken,remote,referer,lrevision,locale,userAgent,dtmcreated,dtmmodified,istate" . ($groupid ? ",groupid" : "") . ") values " .
"('%s','%s',%s,'%s','%s',%s,'%s','%s',CURRENT_TIMESTAMP,CURRENT_TIMESTAMP,$initialState" . ($groupid ? ",$groupid" : "") . ")",
db_escape_string($username, $link),
db_escape_string($userid, $link),
next_token(),
db_escape_string($remoteHost, $link),
db_escape_string($referer, $link),
next_revision($link),
db_escape_string($lang, $link),
db_escape_string($userbrowser, $link));
perform_query($query, $link);
$id = db_insert_id($link);
$newthread = thread_by_id_($id, $link);
return $newthread;
}
function do_take_thread($threadid, $operatorId, $operatorName)
{
global $state_chatting;
$link = connect();
commit_thread($threadid,
array("istate" => $state_chatting,
"nextagent" => 0,
"agentId" => $operatorId,
"agentName" => "'" . db_escape_string($operatorName, $link) . "'"), $link);
close_connection($link);
}
function reopen_thread($threadid)
{
global $state_queue, $state_loading, $state_waiting, $state_chatting, $state_closed, $state_left, $kind_events;
$link = connect();
$thread = thread_by_id_($threadid, $link);
if (!$thread)
return FALSE;
if ($thread['istate'] == $state_closed || $thread['istate'] == $state_left)
return FALSE;
if ($thread['istate'] != $state_chatting && $thread['istate'] != $state_queue && $thread['istate'] != $state_loading) {
commit_thread($threadid,
array("istate" => $state_waiting, "nextagent" => 0), $link);
}
post_message_($thread['threadid'], $kind_events, getstring_("chat.status.user.reopenedthread", $thread['locale']), $link);
close_connection($link);
return $thread;
}
function take_thread($thread, $operator)
{
global $state_queue, $state_loading, $state_waiting, $state_chatting, $kind_events, $kind_avatar, $home_locale;
$state = $thread['istate'];
$threadid = $thread['threadid'];
$message_to_post = "";
$operatorName = ($thread['locale'] == $home_locale) ? $operator['vclocalename'] : $operator['vccommonname'];
if ($state == $state_queue || $state == $state_waiting || $state == $state_loading) {
do_take_thread($threadid, $operator['operatorid'], $operatorName);
if ($state == $state_waiting) {
if ($operatorName != $thread['agentName']) {
$message_to_post = getstring2_("chat.status.operator.changed", array($operatorName, $thread['agentName']), $thread['locale']);
} else {
$message_to_post = getstring2_("chat.status.operator.returned", array($operatorName), $thread['locale']);
}
} else {
$message_to_post = getstring2_("chat.status.operator.joined", array($operatorName), $thread['locale']);
}
} else if ($state == $state_chatting) {
if ($operator['operatorid'] != $thread['agentId']) {
do_take_thread($threadid, $operator['operatorid'], $operatorName);
$message_to_post = getstring2_("chat.status.operator.changed", array($operatorName, $thread['agentName']), $thread['locale']);
}
} else {
die("cannot take thread");
}
if ($message_to_post) {
post_message($threadid, $kind_events, $message_to_post);
post_message($threadid, $kind_avatar, $operator['vcavatar'] ? $operator['vcavatar'] : "");
}
}
function check_for_reassign($thread, $operator)
{
global $state_waiting, $home_locale, $kind_events, $kind_avatar;
$operatorName = ($thread['locale'] == $home_locale) ? $operator['vclocalename'] : $operator['vccommonname'];
if ($thread['istate'] == $state_waiting &&
($thread['nextagent'] == $operator['operatorid']
|| $thread['agentId'] == $operator['operatorid'])) {
do_take_thread($thread['threadid'], $operator['operatorid'], $operatorName);
if ($operatorName != $thread['agentName']) {
$message_to_post = getstring2_("chat.status.operator.changed", array($operatorName, $thread['agentName']), $thread['locale']);
} else {
$message_to_post = getstring2_("chat.status.operator.returned", array($operatorName), $thread['locale']);
}
post_message($thread['threadid'], $kind_events, $message_to_post);
post_message($thread['threadid'], $kind_avatar, $operator['vcavatar'] ? $operator['vcavatar'] : "");
}
}
function check_connections_from_remote($remote, $link)
{
global $settings, $state_closed, $state_left, $mysqlprefix;
if ($settings['max_connections_from_one_host'] == 0) {
return true;
}
$result = select_one_row(
"select count(*) as opened from ${mysqlprefix}chatthread " .
"where remote = '" . db_escape_string($remote, $link) . "' AND istate <> $state_closed AND istate <> $state_left", $link);
if ($result && isset($result['opened'])) {
return $result['opened'] < $settings['max_connections_from_one_host'];
}
return true;
}
function visitor_from_request()
{
global $namecookie, $webim_encoding, $usercookie;
$defaultName = getstring("chat.default.username");
$userName = $defaultName;
if (isset($_COOKIE[$namecookie])) {
$data = base64_decode(strtr($_COOKIE[$namecookie], '-_,', '+/='));
if (strlen($data) > 0) {
$userName = myiconv("utf-8", $webim_encoding, $data);
}
}
if ($userName == $defaultName) {
$userName = getgetparam('name', $userName);
}
if (isset($_COOKIE[$usercookie])) {
$userId = $_COOKIE[$usercookie];
} else {
$userId = get_user_id();
setcookie($usercookie, $userId, time() + 60 * 60 * 24 * 365);
}
return array('id' => $userId, 'name' => $userName);
}
function get_remote_host()
{
$extAddr = $_SERVER['REMOTE_ADDR'];
if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) &&
$_SERVER['HTTP_X_FORWARDED_FOR'] != $_SERVER['REMOTE_ADDR']) {
$extAddr = $_SERVER['REMOTE_ADDR'] . ' (' . $_SERVER['HTTP_X_FORWARDED_FOR'] . ')';
}
return isset($_SERVER['REMOTE_HOST']) ? $_SERVER['REMOTE_HOST'] : $extAddr;
}
?>