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100 lines
3.7 KiB
100 lines
3.7 KiB
<?php
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/**
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* @package tikiwiki
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*/
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// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
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//
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// All Rights Reserved. See copyright.txt for details and a complete list of authors.
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// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
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// $Id$
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// Live Support CHAT server.
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// This PHP script handles all the messaging between the clients
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// and the server (this script). Messaging is done using a REST
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// model based on HTTP GET requests.
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// Clients use JavaScript to send messages to this server.
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// clients of this server are:
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// * The operator console
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// * The operator chat window
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// * The client chat window
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// Long includes and heavy operations should be avoided to maximize the
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// response time of this script which is critical.
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include "tiki-setup.php";
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header('Content-Type: text/xml');
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if ($prefs['feature_live_support'] != 'y') {
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die;
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}
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include_once('lib/live_support/lslib.php');
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header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
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header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
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header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1
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header("Cache-Control: post-check=0, pre-check=0", false);
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header("Pragma: no-cache"); // HTTP/1.0
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// A user requests a chat
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if (isset($_REQUEST['request_chat'])) {
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// The server receives a chat request
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// if then inserts a row in the support_requests table
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// with the name of the user (or anonymous) and the reason for
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// the request.
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// Operator windows polling this server will be notified of current
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// 'active' chat requests
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header("Content-type: text/plain");
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$id = $lslib->new_user_request($_REQUEST['user'], $_REQUEST['tiki_user'], $_REQUEST['email'], $_REQUEST['reason']);
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print ($id);
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}
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if (isset($_REQUEST['set_operator_status'])) {
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$lslib->set_operator_status($_REQUEST['set_operator_status'], $_REQUEST['status']);
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}
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if (isset($_REQUEST['operators_online'])) {
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if ($lslib->operators_online()) {
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header("Content-type: image/png");
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readfile('img/icons/live-support-on.png');
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} else {
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header("Content-type: image/png");
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readfile('img/icons/live-support-off.png');
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}
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}
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if (isset($_REQUEST['write'])) {
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if ($_REQUEST['role'] == 'operator') {
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$color = 'blue';
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}
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if ($_REQUEST['role'] == 'user') {
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$color = 'black';
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}
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if ($_REQUEST['role'] == 'observer') {
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$color = 'grey';
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}
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if (! strstr($_REQUEST['msg'], 'has left')) {
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$_REQUEST['msg'] = '<span class="'.$_REQUEST['role'].'" style="color:' . $color . ';">(' . $_REQUEST['name'] . ')' . ' ' . $_REQUEST['msg'] . '</span>';
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}
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$lslib->put_message($_REQUEST['write'], $_REQUEST['msg'], $_REQUEST['senderId']);
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}
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if (isset($_REQUEST['get_last_event'])) {
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header("Content-type: text/plain");
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echo $lslib->get_last_event($_REQUEST['get_last_event'], $_REQUEST['senderId']);
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}
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if (isset($_REQUEST['get_event'])) {
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header("Content-type: text/plain");
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echo $lslib->get_support_event($_REQUEST['get_event'], $_REQUEST['last'], $_REQUEST['senderId']);
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}
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// A client closes its window
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if (isset($_REQUEST['client_close'])) {
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$lslib->user_close_request($_REQUEST['client_close']);
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}
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// An operator closes its window
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if (isset($_REQUEST['operator_close'])) {
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$lslib->operator_close_request($_REQUEST['operator_close']);
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}
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// A client polls for a connection
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if (isset($_REQUEST['get_status'])) {
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header("Content-type: text/plain");
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echo $lslib->get_request_status($_REQUEST['get_status']);
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}
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// Operator console gets requests
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if (isset($_REQUEST['poll_requests'])) {
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// Now we can format this as XML
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header("Content-type: text/plain");
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echo $lslib->get_last_request();
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}
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